George Boole [buːl], (November 2, 1815 Lincoln, Lincolnshire, England – December 8, 1864 Ballintemple, County Cork, Ireland) was a mathematician and philosopher. As the inventor of Boolean algebra, the basis of all modern computer arithmetic, Boole is regarded in hindsight as one of the founders of the field of computer science, although computers did not exist in his day (see "Legacy" section below). George Boole - Biography. George HOMA Boole ...

Including:

• George Boole - Biography
• George Boole - Legacy
• George Boole - Secondary literature

Read more here: » George Boole: Encyclopedia - George Boole

The Los Angeles Unified School District ( the "LAUSD") is the largest (in terms of number of students) public school system in California and the second-largest in the United States. As of 2005 it serves over 710,000 students. The Los Angeles Unified School District serves Los Angeles and all or portions of several adjoining California cities. The LAUSD is so large that it has its own police department. The Los Angeles School Police Departmen ...

Including:

• Los Angeles Unified School District - Governance
• Los Angeles Unified School District - LAUSD cities and unincorporated areas
• Los Angeles Unified School District - List of schools and properties
• Los Angeles Unified School District - Secondary schools
• Los Angeles Unified School District - Elementary schools
• Los Angeles Unified School District - Properties
• Los Angeles Unified School District - Notable staff members
• Los Angeles Unified School District - Teachers
• Los Angeles Unified School District - Other

Read more here: » Los Angeles Unified School District: Encyclopedia - Los Angeles Unified School District

In mathematics, an infinitesimal, or infinitely small number, is a number that is smaller in absolute value than any positive real number. A number x is an infinitesimal iff for every integer n, |nx| is less than 1, no matter how large n is. In that case, 1/x is larger than any positive real number. Nonzero infinitesimals, obviously, are not real numbers, so "operations" on them are not familiar. Infinitesimal - History of the infinitesimal. The first mathematician ...

Including:

• Infinitesimal - History of the infinitesimal
• Infinitesimal - Modern uses of infinitesimals

Read more here: » Infinitesimal: Encyclopedia - Infinitesimal

Main article: Kerala school Madhava founded the Kerala school, which included as its prominent members Parameswara, Neelakanta Somayaji, Jyeshtadeva, Achyuta Pisharati, Melpathur Narayana Bhattathiri and Achyuta Panikkar. It flourished between the 13th and 16th centuries and has its intellectual roots with Aryabhatta who lived in the 5th century. The lineage continues down to modern times but the original research seems to have ended with Narayana Bhattathiri. These astronomers, in attempting to solve problems, invented revolut ...

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Madhava of Sangamagrama, Madhava of Sangamagrama - Contributions, Madhava of Sangamagrama - Kerala School of Astronomy and Mathematics

Read more here: » Madhava of Sangamagrama: Encyclopedia II - Madhava of Sangamagrama - Kerala School of Astronomy and Mathematics

There is an entire field of humorous yet serious study that involves the use of mnemonic techniques to remember the digits of π, which is known as piphilology. See Pi mnemonics for examples. March 14 (3/14 in US date format) marks Pi Day which is celebrated by many lovers of π. On July 22, Pi Approximation Day is celebrated (22/7 - in European date format - is a popular approximation of π). In the early hours of Saturday 2 July 2005, a Japanese mental health counsellor, Akira Haraguchi, 59, managed to recite π's first 83,431 decimal places from memory, thus breaki ...

See also:

Pi, Pi - Properties, Pi - Formulae involving π, Pi - Geometry, Pi - Analysis, Pi - Continued fractions, Pi - Number theory, Pi - Dynamical systems and ergodic theory, Pi - Physics, Pi - Probability and statistics, Pi - History of π, Pi - Numerical approximations of π, Pi - Miscellaneous formulae, Pi - Less accurate approximations, Pi - Open questions, Pi - The nature of π, Pi - Fictional references, Pi - π culture

Read more here: » Pi: Encyclopedia II - Pi - π culture

In non-Euclidean geometry the sum of the angles of a triangle may be more or less than π radians, and the ratio of a circle's circumference to its diameter may also differ from π. This does not change the definition of π, but it does affect many formulae in which π appears. So, in particular, π is not affected by the shape of the universe; it is not a physical constant but a mathematical constant defined independently of any physical measurements. Nonetheless, it occurs often in physics. For example, consi ...

See also:

Pi, Pi - Properties, Pi - Formulae involving π, Pi - Geometry, Pi - Analysis, Pi - Continued fractions, Pi - Number theory, Pi - Dynamical systems and ergodic theory, Pi - Physics, Pi - Probability and statistics, Pi - History of π, Pi - Numerical approximations of π, Pi - Miscellaneous formulae, Pi - Less accurate approximations, Pi - Open questions, Pi - The nature of π, Pi - Fictional references, Pi - π culture

Read more here: » Pi: Encyclopedia II - Pi - The nature of π

Ever since computers have calculated π to billions of decimal places, memorizing π has become a popular hobby for many people. The current world record is 83431 decimal places, and was set by a Japanese mental health counsellor named Akira Haraguchi, who is currently 59 years of age.[2] Before Haraguchi accomplished this on July 2, 2005, the world record was 42195, which was set by Hiroyuki Goto. See here, a website listing many people who have ...

See also:

Pi, Pi - Properties, Pi - Formulae involving π, Pi - Geometry, Pi - Analysis, Pi - Continued fractions, Pi - Number theory, Pi - Dynamical systems and ergodic theory, Pi - Physics, Pi - Probability and statistics, Pi - History of π, Pi - Numerical approximations of π, Pi - Miscellaneous formulae, Pi - Less accurate approximations, Pi - Open questions, Pi - The nature of π, Pi - Fictional references, Pi - π culture, Pi - Memorizing Pi

Read more here: » Pi: Encyclopedia II - Pi - Memorizing Pi

Pi - Geometry. π appears in many formulae in geometry involving circles and spheres. (All of these are a consequence of the first one, as the area of a circle can be written as A = ∫(2πr)dr ("sum of annuli of infinitesimal width"), and others concern a surface or solid of revolution.) Also, the angle measure of 180° (degrees) is equal to π radians. ...

See also:

Pi, Pi - Properties, Pi - Formulae involving π, Pi - Geometry, Pi - Analysis, Pi - Continued fractions, Pi - Number theory, Pi - Dynamical systems and ergodic theory, Pi - Physics, Pi - Probability and statistics, Pi - History of π, Pi - Numerical approximations of π, Pi - Miscellaneous formulae, Pi - Less accurate approximations, Pi - Open questions, Pi - The nature of π, Pi - Fictional references, Pi - π culture, Pi - Memorizing Pi

Read more here: » Pi: Encyclopedia II - Pi - Formulae involving π

π is an irrational number; that is, it cannot be written as the ratio of two integers, as was proven in 1761 by Johann Heinrich Lambert. π is also transcendental, as was proven by Ferdinand von Lindemann in 1882. This means that there is no polynomial with rational coefficients of which π is a root. An important consequence of the transcendence of π is the fact that it is not constructible. Because the coordinates of all points that can be constructed with ruler and compass are constructible numbers, it is impossible to square the circle, that is, it is impossible to construct, using ruler and compass alone, a square whose area is equ ...

See also:

Pi, Pi - Properties, Pi - Formulae involving π, Pi - Geometry, Pi - Analysis, Pi - Continued fractions, Pi - Number theory, Pi - Dynamical systems and ergodic theory, Pi - Physics, Pi - Probability and statistics, Pi - History of π, Pi - Numerical approximations of π, Pi - Miscellaneous formulae, Pi - Less accurate approximations, Pi - Open questions, Pi - The nature of π, Pi - Fictional references, Pi - π culture, Pi - Memorizing Pi

Read more here: » Pi: Encyclopedia II - Pi - Properties

The most pressing open question about π is whether it is a normal number -- whether any digit block occurs in the expansion of π just as often as one would statistically expect if the digits had been produced completely "randomly", and that this is true in every base, not just base 10. Current knowledge on this point is very weak; e.g., it is not even known which of the digits 0,…,9 occur infinitely ...

See also:

Pi, Pi - Properties, Pi - Formulae involving π, Pi - Geometry, Pi - Analysis, Pi - Continued fractions, Pi - Number theory, Pi - Dynamical systems and ergodic theory, Pi - Physics, Pi - Probability and statistics, Pi - History of π, Pi - Numerical approximations of π, Pi - Miscellaneous formulae, Pi - Less accurate approximations, Pi - Open questions, Pi - The nature of π, Pi - Fictional references, Pi - π culture, Pi - Memorizing Pi

Read more here: » Pi: Encyclopedia II - Pi - Open questions

π is an irrational number; that is, it cannot be written as the ratio of two integers, as was proven in 1761 by Johann Heinrich Lambert. π is also transcendental, as was proven by Ferdinand von Lindemann in 1882. This means that there is no polynomial with rational coefficients of which π is a root. An important consequence of the transcendence of π is the fact that it is not constructible. Because the coordinates of all points that can be constructed with ruler and compass are constructible numbers, it is impossible to square the circle, that is, it is impossible to construct, using ruler and compass alone, a square whose area is equ ...

See also:

Pi, Pi - Properties, Pi - Formulae involving π, Pi - Geometry, Pi - Analysis, Pi - Continued fractions, Pi - Number theory, Pi - Dynamical systems and ergodic theory, Pi - Physics, Pi - Probability and statistics, Pi - History of π, Pi - Numerical approximations of π, Pi - Miscellaneous formulae, Pi - Less accurate approximations, Pi - Open questions, Pi - The nature of π, Pi - Fictional references, Pi - π culture

Read more here: » Pi: Encyclopedia II - Pi - Properties

March 14 (3/14 in US date format) marks Pi Day which is celebrated by many lovers of π. On July 22, Pi Approximation Day is celebrated (22/7 - in European date format - is a popular approximation of π). 355/113 (~3.1415929) is sometimes jokingly referred to as "not π, but an incredible simulation!" Singer Kate Bush's recently released album "Aerial" contains a song titled "π," in which she sings π to over one hundred decimal places. Fans have discovered that she got some of them wrong[1], however, and actually misses twenty-two numbers. Fans are ca ...

See also:

Pi, Pi - Properties, Pi - Formulae involving π, Pi - Geometry, Pi - Analysis, Pi - Continued fractions, Pi - Number theory, Pi - Dynamical systems and ergodic theory, Pi - Physics, Pi - Probability and statistics, Pi - History of π, Pi - Numerical approximations of π, Pi - Miscellaneous formulae, Pi - Less accurate approximations, Pi - Open questions, Pi - The nature of π, Pi - Fictional references, Pi - π culture, Pi - Memorizing Pi

Read more here: » Pi: Encyclopedia II - Pi - π culture

Main article: History of Pi. π has been known in some form since antiquity. References to measurements of a circular basin in the Bible appears to give a corresponding value of 3 for π: "And he made a molten sea, ten cubits from the one brim to the other: it was round all about, and his height was five cubits: and a line of thirty cubits did compass it round about." — 1 Kings 7:23; KJV. Nehemiah, a late antique Jewish rabbi and mathematician explained this apparent lack of precision in π, by considering the thicknes ...

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Pi, Pi - Properties, Pi - Formulae involving π, Pi - Geometry, Pi - Analysis, Pi - Continued fractions, Pi - Number theory, Pi - Dynamical systems and ergodic theory, Pi - Physics, Pi - Probability and statistics, Pi - History of π, Pi - Numerical approximations of π, Pi - Miscellaneous formulae, Pi - Less accurate approximations, Pi - Open questions, Pi - The nature of π, Pi - Fictional references, Pi - π culture

Read more here: » Pi: Encyclopedia II - Pi - History of π

Due to the transcendental nature of π, there are no closed expressions for the number in terms of algebraic numbers and functions. Therefore numerical calculations must use approximations of π. For many purposes, 3.14 or 22/7 is close enough, although engineers often use 3.1416 (5 significant figures) or 3.14159 (6 significant figures) for more accuracy. The approximations 22/7 and 355/113, with 3 and 7 significant figures respectively, are obtaine ...

See also:

Pi, Pi - Properties, Pi - Formulae involving π, Pi - Geometry, Pi - Analysis, Pi - Continued fractions, Pi - Number theory, Pi - Dynamical systems and ergodic theory, Pi - Physics, Pi - Probability and statistics, Pi - History of π, Pi - Numerical approximations of π, Pi - Miscellaneous formulae, Pi - Less accurate approximations, Pi - Open questions, Pi - The nature of π, Pi - Fictional references, Pi - π culture

Read more here: » Pi: Encyclopedia II - Pi - Numerical approximations of π

In non-Euclidean geometry the sum of the angles of a triangle may be more or less than π radians, and the ratio of a circle's circumference to its diameter may also differ from π. This does not change the definition of π, but it does affect many formulae in which π appears. So, in particular, π is not affected by the shape of the universe; it is not a physical constant but a mathematical constant defined independently of any physical measurements. Nonetheless, it occurs often in physics. For example, consider Coulomb ...

See also:

Pi, Pi - Properties, Pi - Formulae involving π, Pi - Geometry, Pi - Analysis, Pi - Continued fractions, Pi - Number theory, Pi - Dynamical systems and ergodic theory, Pi - Physics, Pi - Probability and statistics, Pi - History of π, Pi - Numerical approximations of π, Pi - Miscellaneous formulae, Pi - Less accurate approximations, Pi - Open questions, Pi - The nature of π, Pi - Fictional references, Pi - π culture, Pi - Memorizing Pi

Read more here: » Pi: Encyclopedia II - Pi - The nature of π

The most pressing open question about π is whether it is a normal number -- whether any digit block occurs in the expansion of π just as often as one would statistically expect if the digits had been produced completely "randomly". This must be true in any base, not just in base 10. Current knowledge in this direction is very weak; e.g., it is not even known which of the digits 0,…,9 occur infinitely ...

See also:

Pi, Pi - Properties, Pi - Formulae involving π, Pi - Geometry, Pi - Analysis, Pi - Continued fractions, Pi - Number theory, Pi - Dynamical systems and ergodic theory, Pi - Physics, Pi - Probability and statistics, Pi - History of π, Pi - Numerical approximations of π, Pi - Miscellaneous formulae, Pi - Less accurate approximations, Pi - Open questions, Pi - The nature of π, Pi - Fictional references, Pi - π culture

Read more here: » Pi: Encyclopedia II - Pi - Open questions

Main article: History of Pi. The value of π has been known in some form since antiquity. As early as the 20th century BC, Babylonian mathematicians were using π=25/8, which is within 0.5% of the exact value. It is sometimes claimed that the Bible states that π=3, based on a passage in 1 Kings 7:23 giving measurements for a round basin. Rabbi Nehemiah explained this by the diameter being from outside to outside while the circumference was the inner brim; but it may suffice that the measurements are given in round numbers. (Also, the basin ...

See also:

Pi, Pi - Properties, Pi - Formulae involving π, Pi - Geometry, Pi - Analysis, Pi - Continued fractions, Pi - Number theory, Pi - Dynamical systems and ergodic theory, Pi - Physics, Pi - Probability and statistics, Pi - History of π, Pi - Numerical approximations of π, Pi - Miscellaneous formulae, Pi - Less accurate approximations, Pi - Open questions, Pi - The nature of π, Pi - Fictional references, Pi - π culture, Pi - Memorizing Pi

Read more here: » Pi: Encyclopedia II - Pi - History of π

Operators are described usually by the number of operands: monadic or unary operators take one argument. dyadic or binary operators take two arguments. triadic or ternary/trinary/tertiary operators take three arguments. The number of operands is also called the arity of the operator. If an operator has an arity given as n-ary (or n-adic), then it takes n arguments. In programming, outside than functional programming, the -ary terms are more often used than the ot ...

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Operator, Operator - Operators and levels of abstraction, Operator - Describing operators, Operator - Notations, Operator - Examples of mathematical operators, Operator - Linear operators, Operator - Operators in probability theory, Operator - Operators in calculus, Operator - Fundamental operators on scalar and vector fields, Operator - Relation to type theory, Operator - Operators in physics

Read more here: » Operator: Encyclopedia II - Operator - Describing operators

List of publications in mathematics - Euclid's Elements. Euclid Publication data: c. 300 BC Online version: Interactive Java version Description: This is probably not only the most important work in geometry but the most important work in mathematics. It contains many important results in geometry, number theory and the first algorithm as well. The Elements is still a valuable resource and a good introduction to algorithm. More tha ...

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List of publications in mathematics, List of publications in mathematics - Geometry, List of publications in mathematics - Euclid's Elements, List of publications in mathematics - La Géométrie, List of publications in mathematics - Logic, List of publications in mathematics - Begriffsschrift, List of publications in mathematics - Formulario mathematico, List of publications in mathematics - Principia Mathematica, List of publications in mathematics - Gödel's incompleteness theorem, List of publications in mathematics - Information theory, List of publications in mathematics - Number theory, List of publications in mathematics - Disquisitiones Arithmeticae, List of publications in mathematics - On the Number of Primes Less Than a Given Magnitude, List of publications in mathematics - Vorlesungen über Zahlentheorie, List of publications in mathematics - Number Theory An approach through history from Hammurapi to Legendre, List of publications in mathematics - Calculus, List of publications in mathematics - Philosophiae Naturalis Principia Mathematica, List of publications in mathematics - Newton's Principia for the Common Reader, List of publications in mathematics - Calculus and Calculus on Manifolds, List of publications in mathematics - Numerical analysis, List of publications in mathematics - Method of Fluxions, List of publications in mathematics - Game theory, List of publications in mathematics - Evolution and the Theory of Games, List of publications in mathematics - Theory of Games and Economic Behavior, List of publications in mathematics - On Numbers and Games, List of publications in mathematics - Winning Ways for your Mathematical Plays, List of publications in mathematics - Fractals, List of publications in mathematics - How Long Is the Coast of Britain? Statistical Self-Similarity and Fractional Dimension, List of publications in mathematics - Early manuscripts, List of publications in mathematics - Rhind Mathematical Papyrus, List of publications in mathematics - The Nine Chapters on the Mathematical Art, List of publications in mathematics - Archimedes Palimpsest, List of publications in mathematics - The Sand Reckoner, List of publications in mathematics - Textbooks, List of publications in mathematics - Course of Pure Mathematics, List of publications in mathematics - Art of Problem Solving, List of publications in mathematics - Metalogic: an Introduction to the Metatheory of Standard First Order Logic, List of publications in mathematics - Popular writing, List of publications in mathematics - Gödel Escher Bach, List of publications in mathematics - The World of Mathematics, List of publications in mathematics - Arithmetic, List of publications in mathematics - Arithmetick: or The Grounde of Arts, List of publications in mathematics - The Schoolmaster's Assistant Being a Compendium of Arithmetic both Practical and Theoretical, List of publications in mathematics - Abstract algebra, List of publications in mathematics - Moderne Algebra, List of publications in mathematics - Linear algebra, List of publications in mathematics - Algebraic geometry, List of publications in mathematics - Faisceaux Algébriques Cohérents, List of publications in mathematics - Géométrie Algébrique et Géométrie Analytique, List of publications in mathematics - Éléments de géométrie algébrique, List of publications in mathematics - Séminaire de géométrie algébrique, List of publications in mathematics - Algebraic Geometry, List of publications in mathematics - Universal algebra, List of publications in mathematics - Universal algebra, List of publications in mathematics - Group theory, List of publications in mathematics - Monoid, List of publications in mathematics - Topology, List of publications in mathematics - Topologie, List of publications in mathematics - Topology, List of publications in mathematics - General Topology, List of publications in mathematics - Graph theory, List of publications in mathematics - Category theory, List of publications in mathematics - Categories for the Working Mathematician, List of publications in mathematics - Category Theory for Computing Science, List of publications in mathematics - Order theory, List of publications in mathematics - Trigonometry, List of publications in mathematics - Differential geometry, List of publications in mathematics - Differential topology, List of publications in mathematics - Topology from the Differentiable Viewpoint, List of publications in mathematics - Algebraic topology, List of publications in mathematics - Algebraic Topology, List of publications in mathematics - Fractal geometry, List of publications in mathematics - Discrete mathematics, List of publications in mathematics - Combinatorics, List of publications in mathematics - Set theory, List of publications in mathematics - Grundzüge der Mengenlehre, List of publications in mathematics - Naive Set Theory, List of publications in mathematics - Cardinal and Ordinal Numbers, List of publications in mathematics - The Consistency of the Continuum Hypothesis, List of publications in mathematics - Set Theory and the Continuum Hypothesis, List of publications in mathematics - Set Theory: An Introduction to Independence Proofs, List of publications in mathematics - Optimization, List of publications in mathematics - The New Variational Method, List of publications in mathematics - Decomposition Principle for Linear Programs., List of publications in mathematics - Network Flows and General Matchings, List of publications in mathematics - Paths trees and Flowers, List of publications in mathematics - The complexity of theorem proving procedures, List of publications in mathematics - Reducibility among combinatorial problems, List of publications in mathematics - How good is the simplex algorithm?, List of publications in mathematics - Linear Programming and Polynomial time algorithms, List of publications in mathematics - New polynomial-time algorithm for linear programming, List of publications in mathematics - Interior Point Polynomial Algorithms in Convex Programming

Read more here: » List of publications in mathematics: Encyclopedia II - List of publications in mathematics - Geometry

List of ICD-9 codes - Intestinal infectious diseases 001-009. (001) Cholera (002) Typhoid and paratyphoid fevers (003) Other Salmonella infections (003.0) Salmonella gastroenteritis (004) Shigellosis (004.9) Shigellosis, unspec. (005) Other food poisoning (bacterial) (005.0) Staphylococcal food poisoning (006) Amoebiasis (006.0) Acute amoebic dysentery without mention of abscess (006 ...

See also:

List of ICD-9 codes, List of ICD-9 codes - 1. Infectious and parasitic diseases 001-139, List of ICD-9 codes - Intestinal infectious diseases 001-009, List of ICD-9 codes - tuberculosis 010-018, List of ICD-9 codes - zoonotic bacterial diseases 020-027, List of ICD-9 codes - other bacterial diseases 030-041, List of ICD-9 codes - human immunodeficiency virus hiv infection 042-044, List of ICD-9 codes - poliomyelitis and other non-arthropod-borne viral diseases of central nervous system 045-049, List of ICD-9 codes - viral diseases accompanied by exanthem 050-057, List of ICD-9 codes - arthropod-borne viral diseases 060-066, List of ICD-9 codes - other diseases due to viruses and chlamydiae 070-079, List of ICD-9 codes - rickettsioses and other arthropod-borne diseases 080-088, List of ICD-9 codes - syphilis and other venereal diseases 090-099, List of ICD-9 codes - other spirochetal diseases 100-104, List of ICD-9 codes - mycoses 110-118, List of ICD-9 codes - helminthiases 120-129, List of ICD-9 codes - other infectious and parasitic diseases 130-136, List of ICD-9 codes - late effects of infectious and parasitic diseases 137-139, List of ICD-9 codes - 2. Neoplasms 140-239, List of ICD-9 codes - malignant neoplasm of lip oral cavity and pharynx 140-149, List of ICD-9 codes - malignant neoplasm of digestive organs and peritoneum 150-159, List of ICD-9 codes - malignant neoplasm of respiratory and intrathoracic organs 160-165, List of ICD-9 codes - malignant neoplasm of bone connective tissue skin and breast 170-176, List of ICD-9 codes - malignant neoplasm of genitourinary organs 179-189, List of ICD-9 codes - malignant neoplasm of other and unspecified sites 190-199, List of ICD-9 codes - malignant neoplasm of lymphatic and hematopoietic tissue 200-208, List of ICD-9 codes - benign neoplasms 210-229, List of ICD-9 codes - carcinoma in situ 230-234, List of ICD-9 codes - neoplasms of uncertain behavior 235-238, List of ICD-9 codes - neoplasms of unspecified nature 239-239, List of ICD-9 codes - 3. Endocrine nutritional and metabolic diseases and immunity disorders 240-279, List of ICD-9 codes - disorders of thyroid gland 240-246, List of ICD-9 codes - diseases of other endocrine glands 250-259, List of ICD-9 codes - nutritional deficiencies 260-269, List of ICD-9 codes - other metabolic and immunity disorders 270-279, List of ICD-9 codes - 4. Diseases of the blood and blood-forming organs 280-289, List of ICD-9 codes - diseases of the blood and blood-forming organs 280-289, List of ICD-9 codes - 5. Mental disorders 290-319, List of ICD-9 codes - psychoses 290-299, List of ICD-9 codes - organic psychotic conditions 290-294, List of ICD-9 codes - other psychoses 295-299, List of ICD-9 codes - neurotic disorders personality disorders and other nonpsychotic mental disorders 300-316, List of ICD-9 codes - mental retardation 317-319, List of ICD-9 codes - 6. Diseases of the nervous system and sense organs 320-389, List of ICD-9 codes - inflammatory diseases of the central nervous system 320-326, List of ICD-9 codes - hereditary and degenerative diseases of the central nervous system 330-337, List of ICD-9 codes - other disorders of the central nervous system 340-349, List of ICD-9 codes - disorders of the peripheral nervous system 350-359, List of ICD-9 codes - disorders of the eye and adnexa 360-379, List of ICD-9 codes - diseases of the ear and mastoid process 380-389, List of ICD-9 codes - 7. Diseases of the circulatory system 390-459, List of ICD-9 codes - acute rheumatic fever 390-392, List of ICD-9 codes - chronic rheumatic heart disease 393-398, List of ICD-9 codes - hypertensive disease 401-405, List of ICD-9 codes - ischemic heart disease 410-414, List of ICD-9 codes - diseases of pulmonary circulation 415-417, List of ICD-9 codes - other forms of heart disease 420-429, List of ICD-9 codes - cerebrovascular disease 430-438, List of ICD-9 codes - diseases of arteries arterioles and capillaries 440-448, List of ICD-9 codes - diseases of veins and lymphatics and other diseases of circulatory system 451-459, List of ICD-9 codes - 8. Diseases of the respiratory system 460-519, List of ICD-9 codes - acute respiratory infections 460-466, List of ICD-9 codes - other diseases of the upper respiratory tract 470-478, List of ICD-9 codes - pneumonia and influenza 480-487, List of ICD-9 codes - chronic obstructive pulmonary disease and allied conditions 490-496, List of ICD-9 codes - pneumoconioses and other lung diseases due to external agents 500-508, List of ICD-9 codes - other diseases of respiratory system 510-519, List of ICD-9 codes - 9. Diseases of the digestive system 520-579, List of ICD-9 codes - diseases of oral cavity salivary glands and jaws 520-529, List of ICD-9 codes - diseases of esophagus stomach and duodenum 530-537, List of ICD-9 codes - appendicitis 540-543, List of ICD-9 codes - hernia of abdominal cavity 550-553, List of ICD-9 codes - noninfectious enteritis and colitis 555-558, List of ICD-9 codes - other diseases of intestines and peritoneum 560-569, List of ICD-9 codes - other diseases of digestive system 570-579, List of ICD-9 codes - 10. Diseases of the genitourinary system 580-629, List of ICD-9 codes - nephritis nephrotic syndrome and nephrosis 580-589, List of ICD-9 codes - other diseases of urinary system 590-599, List of ICD-9 codes - diseases of male genital organs 600-608, List of ICD-9 codes - disorders of breast 610-611, List of ICD-9 codes - inflammatory disease of female pelvic organs 614-616, List of ICD-9 codes - other disorders of female genital tract 617-629, List of ICD-9 codes - 11. Complications of pregnancy childbirth and the puerperium 630-676, List of ICD-9 codes - ectopic and molar pregnancy 630-633, List of ICD-9 codes - other pregnancy with abortive outcome 634-639, List of ICD-9 codes - complications mainly related to pregnancy 640-648, List of ICD-9 codes - normal delivery and other indications for care in pregnancy labor and delivery 650-659, List of ICD-9 codes - complications occurring mainly in the course of labor and delivery 660-669, List of ICD-9 codes - complications of the puerperium 670-676, List of ICD-9 codes - 12. Diseases of the skin and subcutaneous tissue 680-709, List of ICD-9 codes - infections of skin and subcutaneous tissue 680-686, List of ICD-9 codes - other inflammatory conditions of skin and subcutaneous tissue 690-698, List of ICD-9 codes - other diseases of skin and subcutaneous tissue 700-709, List of ICD-9 codes - 13. Diseases of the musculoskeletal system and connective tissue 710-739, List of ICD-9 codes - arthropathies and related disorders 710-719, List of ICD-9 codes - dorsopathies 720-724, List of ICD-9 codes - rheumatism excluding the back 725-729, List of ICD-9 codes - osteopathies chondropathies and acquired musculoskeletal deformities 730-739, List of ICD-9 codes - 14. Congenital anomalies 740-759, List of ICD-9 codes - congenital anomalies 740-759, List of ICD-9 codes - 15. Certain conditions originating in the perinatal period 760-779, List of ICD-9 codes - maternal causes of perinatal morbidity and mortality 760-763, List of ICD-9 codes - other conditions originating in the perinatal period 764-779, List of ICD-9 codes - 16. Symptoms signs and ill-defined conditions 780-799, List of ICD-9 codes - symptoms 780-789, List of ICD-9 codes - nonspecific abnormal findings 790-796, List of ICD-9 codes - ill-defined and unknown causes of morbidity and mortality 797-799, List of ICD-9 codes - 17. Injury and poisoning 800-999, List of ICD-9 codes - fracture of skull 800-804, List of ICD-9 codes - fracture of neck and trunk 805-809, List of ICD-9 codes - fracture of upper limb 810-819, List of ICD-9 codes - fracture of lower limb 820-829, List of ICD-9 codes - dislocation 830-839, List of ICD-9 codes - sprains and strains of joints and adjacent muscles 840-848, List of ICD-9 codes - intracranial injury excluding those with skull fracture 850-854, List of ICD-9 codes - internal injury of thorax abdomen and pelvis 860-869, List of ICD-9 codes - open wound of head neck and trunk 870-879, List of ICD-9 codes - open wound 870-897, List of ICD-9 codes - open wound of upper limb 880-887, List of ICD-9 codes - open wound of lower limb 890-897, List of ICD-9 codes - injury to blood vessels 900-904, List of ICD-9 codes - late effects of injuries poisonings toxic effects and other external causes 905-909, List of ICD-9 codes - superficial injury 910-919, List of ICD-9 codes - contusion with intact skin surface 920-924, List of ICD-9 codes - crushing injury 925-929, List of ICD-9 codes - effects of foreign body entering through orifice 930-939, List of ICD-9 codes - burns 940-949, List of ICD-9 codes - injury to nerves and spinal cord 950-957, List of ICD-9 codes - certain traumatic complications and unspecified injuries 958-959, List of ICD-9 codes - poisoning by drugs medicinal and biological substances 960-979, List of ICD-9 codes - toxic effects of substances chiefly nonmedicinal as to source 980-989, List of ICD-9 codes - other and unspecified effects of external causes 990-995, List of ICD-9 codes - complications of surgical and medical care not elsewhere classified 996-999, List of ICD-9 codes - E section -- External causes of injury, List of ICD-9 codes - V codes -- Supplementary classification of factors influencing health status and contact with health services

Read more here: » List of ICD-9 codes: Encyclopedia II - List of ICD-9 codes - 1. Infectious and parasitic diseases 001-139

Main article: limit of a function Suppose f(x) is a real function and c is a real number. The expression: means that f(x) can be made to be as close to L as desired by making x sufficiently close to c. In that case, we say that "the limit of f(x), as x approaches c". Note that this statement can be true even if f(c) L. Indeed, the function f(x) need not even b ...

See also:

Limit mathematics, Limit mathematics - Limit of a function, Limit mathematics - Formal definition, Limit mathematics - Limit of a function at infinity, Limit mathematics - Limit of a sequence, Limit mathematics - Topological net, Limit mathematics - Limit in category theory

Read more here: » Limit mathematics: Encyclopedia II - Limit mathematics - Limit of a function