ITM 207 Lecture Notes - Lecture 3: Color Depth, Gif, Vector Graphics
21 Feb 2013
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Document Summary
Number: a unit of an abstract mathematical system subject to the laws of arithmetic. Natural number: the number 0 and any number obtained by repeatedly adding 1 to it. Negative number: a value less than 0, with a sign opposite to its positive counterpart (- sign) Integer: a natural number a negative of a natural number or zero. Rational number: an integer or the quotient of 2 integers (division by zero excluded) Base: the foundational value of a number system, which dictates the number of digits and the value of digit positions. As a formula: dn * rn-1 + dn-1 * rn-2 + + d2 * r + d1. N is the number of digits in the number. D is the digit in the ith position in the number. R is the base of the number. Example: 642 is 600 + 40 +2 in base 10.
