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Floating Point
Functions		Platforms

The OmniMark Floating Point external function library is a collection of basic arithmetic, trigonometric, Bessel, exponential, and miscellaneous math functions based on the C math library. It serves as a "wrapper" around a particular math library. You can use the functions in this library to write OmniMark applications that can perform double-precision floating point arithmetic.

The Floating Point external function library consists of the following files:

• omfloat.so, the floating point library. You must declare the location of this file using the declare function-library command, and before the external function declarations.
• omfloat.xin, which defines the float opaque type and all of the functions and constants in the library. This file must be included in any OmniMark program that uses the functions in the floating point library (include omfloat.xin) because the file contains the external function declarations, the float type definition, and related macros.

There are several categories of external functions in the OMFloat library:

• a function that initializes floating point numbers.
• functions that output floating point numbers.
• basic arithmetic functions.
• logical operators.
• functions for rounding numbers.
• trigonometric math functions.
• exponential functions.
• Bessel functions.
• miscellaneous math functions.

To use these functions, you must include the following code near the top of your program:

  ; name and location of the library file
  declare function-library "omfloat"

  ; Floating Point function and constant declarations
  include "omfloat.xin"

Functions    FP_abs    FP_acos    FP_add    FP_asin    FP_atan    FP_atan2    FP_ceil    FP_cos    FP_cosh    FP_d    FP_div    FP_eq    FP_exp    FP_floor    FP_ge    FP_gt    FP_hypot    FP_isnan    FP_isneg    FP_ispos    FP_iszero    FP_j0    FP_j1    FP_jn    FP_le    FP_log    FP_log10    FP_lt    FP_mod    FP_mul    FP_ne    FP_nearest    FP_neg    FP_pow    FP_s    FP_sin    FP_sinh    FP_sqrt    FP_sub    FP_tan    FP_tanh    FP_trunc    FP_v    FP_y0    FP_y1    FP_yn

Platforms    HP/UX    Solaris    Win 95    Win NT

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