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.