# All Words Glossary

 Glossary of Math Terms beginning with letter I Browse the Math Glossary A B C D E F G H I J K L M N O P Q R S T U V W X Y Z icosahedron noun ( icosahedr, a , pl2=icosahedrons) (geometry) a polyhedron with twenty faces; the regular icosahedron has regular triangles as faces and is one of the Platonic solids. ideal noun a perfect standard of beauty, intellect, etc., or a standard of excellence. (algebra) A subring closed under multiplication by its containing ring. (mathematics) In order theory, a special subset of a partially ordered set. an unattainable state/process in a given time/space but endlessly approachable. adjective being optimal or relating to the best option for something. being perfect, having no flaws or defects. being something that exists only in the mind; CONCEPTUAL, ideational, IDEATIONAL, Life and death appeared to me ideal bounds :" Wikipedia:Mary W. Shelley, Mary W. Shelley idempotent adjective (computing) Describing an action which, when performed multiple times, has no further effect on its subject after the first time it is performed. identity element noun (algebra) A member of a structure which, when applied to any other element via a binary operation induces an identity mapping; more specifically, given an operation , an element I is a left identity if I x = x for any x in the structure a right identity, x I = x for any x in the structure simply an identity element if both are true identity matrix noun (plural identity matrices) (linearalg) A diagonal matrix all of the diagonal elements of which are equal to 1. IFF initialism Interchange File Format, a file format standard developed for Amiga computers. identification friend or foe image noun An optical or other representation of a real object; a graphic; a picture. A mental picture of something not real or not present. (computing) A copy of all or part of a disk drive retained for backup or replication purposes. A characteristic of a person, group or company etc., style, manner of dress, how one is, or wishes to be, perceived by others. (mathematics) Something mapped to by a function. 5 is the of 3 under f. (mathematics) The subset of a codomain comprising those elements that are images of something. The of this step function is the set of integers. verb (imag, ing) (context, computing) To convert an idea to an image. (context, computing) To create a complete backup copy of a filesystem. imaginary adjective that exists only in the imagination (mathematics) of, or being the imaginary part of a complex number imaginary axis noun (mathematics) The vertical line in the complex plane, every point on which corresponds to a complex number having zero real component imaginary number noun (plural imaginary numbers) (complex) A number of the form ai, where a is a real number and i2 = −1; a complex number whose real part is zero. imaginary part noun (plural imaginary parts) (complex) Of a complex number a + bi, the value b. implicit adjective implied, Implied indirectly, without being directly expressed 1983, w:Ronald Reagan, Ronald Reagan, s:Proclamation 5018, Proclamation 5018 :The Bible and its teachings helped form the basis for the Founding Fathers' abiding belief in the inalienable rights of the individual, rights which they found in the Bible's teachings of the inherent worth and dignity of each individual. contained, Contained in the essential nature of something but not openly shown Having no reservations or doubts; unquestioning or unconditional; usually said of faith or trust. 1765, Anonymous, s:Considerations on Behalf of the Colonists, Considerations on Behalf of the Colonists :He is not only a zealous advocate for pusilanimous and passive obedience, but for the most faith in the dictatorial mandates of power. (obsolete) entangled, twisted together. improper fraction noun (plural improper fractions) (arithmetic) A vulgar fraction of which the numerator has a greater magnitude than the denominator, such as 3/2. incircle noun (wikipedia, Incircle and excircles of a triangle) The circle within a triangle that is tangent to all three sides. The incentre is the center of this circle. increasing verb (present participle of, increase) indefinite integral noun (mathematics) A function whose derivative is a given function; an antiderivative independent noun A candidate or voter not affiliated with any political party, a free thinker, free of a party platform. A neutral or uncommitted person. adjective not dependent; not contingent or depending on something else; free independent variable noun (plural independent variables) (algebra) In an equation, any variable whose value is not dependent on any other in the equation. In the equation z = x2 + y, x and y are the independent variables. (science) The variable that is changed in an experiment. indeterminate adjective not accurately determined or determinable imprecise or vague induction noun the act of inducting a formal ceremony in which a person is inducted into an office or into military service (physics) the generation of an electric current by a varying magnetic field (logic) the derivation of general principles from specific instances (mathematics) a general proof of a theorem by first proving it for a specific integer (for example) and showing that, if it is true for one integer then it must be true for the next the act of inducing childbirth In theatre, induction is the use of rumors to twist and complicate the plot of a play or to narrate in a way that does not have to state truth nor fact within the play. (biology) In developmental biology, the development of a feature from part of a formerly homogenous field of cells in response to a morphogen whose source determines the feature's position and extent. (obsolete) an introduction inequality noun (inequalit, ies) An unfair, not equal, state. The in living standards lead to a civil war as the have nots rebelled. (mathematics) A statement that of two quantities one is specifically less than (or greater than) another. The x is less than y, together with that y

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