Open System Services System Calls Reference Manual (G06.29+, H06.08+, J06.03+)

math(4) OSS System Calls Reference Manual
NAME
math - Specifies mathematical functions, constants, and types
SYNOPSIS
#include <math.h>
DESCRIPTION
The math.h header file defines the following types:
float_t Specifies a floating type at least as wide as float.
double_t Specifies a floating type at least as wide as double.
The following macros are defined, where floating-type indicates an expression of the float type:
int fpclassify(
floating-type x);
int isfinite(
floating-type x);
int isgreater(
floating-type x,
floating-type y);
int isgreaterequal(
floating-type x,
floating-type y);
int isinf(
floating-type x);
int isless(
floating-type x,
floating-type y);
int islessequal(
floating-type x,
floating-type y);
int islessgreater(
floating-type x,
floating-type y);
int isnan(
floating-type x);
int isnormal(
floating-type x);
int isunordered(
floating-type x,
floating-type y);
int signbit(
floating-type x);
The following constants of type double are defined. These constants are accurate within the pre-
cision of the double type:
M_E Specifies the value of e.
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