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- Arc tangent - (ATan) Also known as Inverse tangent. Arc corresponds to the
- tangent of so many degrees or radians. Example: The tangent of 45
- degrees equals 1; the Arc tangent of 1 equals 45 degrees.
-
- Biomorph - The term biomorph was applied to Clifford Pickover's creations
- by A.K.Dewdney of Scientific American's Computer Recreations
- department. Biomorphs are a specialized fractal set which look
- distinctly microbial. Biomorphs are calculated much like the
- Mandelbrot fractal; the main difference is in how the colors are
- chosen. Biomorphs are a picture of the complex plane where after
- iterating the function, either the real or imaginary part is less than
- some limit (rather than the whole complex number less than the limit
- in the Mandelbrot set). The function in this case is Z(n+1) = Z(n)^3
- + C where Z(n) and C are complex numbers.
-
- Complex number - A complex number consists of two numbered parts: the real
- part and the imaginary part. The real part is the made up of all
- numbers that we are all familiar with. The imaginary part represents
- a number which cannot be represented by a real number; such numbers
- include the square root of a negative number. The notation of a
- complex number is as follows: 5 + 3i, where 5 is the real number and
- 3i represent the imaginary number.
-
- Cosine - (Cos) Given a right triangle, the ratio of the length of a side
- adjacent to one of the acute angles to the length of the hypotenuse.
-
- Exponential Function - (Exp) A function which contains one or more
- components raised to a power. Example: Y = 2^X - 1. Where ^X
- represents the power to which 2 is raised.
-
- Fractal - The term fractal was coined by Benoit Mandelbrot of IBM. It
- refers to a mathematical set or a physical object whose form is
- extremely irregular and/or fragmented at all scales. The fractal set
- when magnified looks very much the same as the original pattern.
- NOTE: If you find fractals interesting, you can down load a program by
- Burt Tyler, Et Al, called FRAINT.EXE from BIX or Compuserve.
-
- Logarithm - The exponent that indicates the power to which a number is
- raised to produce a given number. Example: Log base 10 of 100 = 2
- (ie. 10^2 = 100)
-
- Mantissa - The significand of a floating point number; not the exponent.
- Example: Given 1.234 X 10^-56 the mantissa is the 1.234 number and the
- exponent is the -56 number.
-
- Sine - (Sin) Given a right triangle, the ratio of the length of a side
- opposite to one of the acute angles to the length of the hypotenuse.
-
- Tangent - (Tan) Given a right triangle, the ratio of the length of the side
- opposite the acute angle to the length of the side adjacent to the
- acute angle. (ie: SIN/COS).
-
- Transcendental - A generic name used to describe the family of functions
- including: Trigonometric, Logarithmic, and Exponential functions.
-
- Unit in the Last Place - (ULP) This represents the least significant bit of
- the mantissa.
-
- Unit's in the Last Place - (ULPs) This represents more than one least
- significant bit of the mantissa. That is, two or more least
- significant bits.
-