math(5)
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math Miscellany
math functions and constants
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SYNTAX
#include <math.h>
DESCRIPTION
This file contains declarations of all the functions in the math
library (described in section 3M), as well as functions in the C
library (sections 3 and 3C) that return floating-point values.
It defines the structure and constants used by the matherr(3M)
error-handling mechanisms, including the following constant used
as an error-return value:
HUGE The maximum value of a single-precision
floating-point number.
The following mathematical constants are defined for your
convenience:
M_E The base of natural logarithms (e).
M_LOG2E The base-2 logarithm of e.
M_LOG10E The base-10 logarithm of e.
M_LN2 The natural logarithm of 2.
M_LN10 The natural logarithm of 10.
M_PI The ratio of the circumference of a circle to
its diameter. (There are also several
fractions of its reciprocal and its square
root.)
M_SQRT2 The positive square root of 2.
M_SQRT1_2 The positive square root of 1/2.
For the definitions of various machine-dependent constants, see
the description of the <values.h> header file.
DG/UX 4.00 Page 1
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math(5)
FILES
/usr/include/math.h
SEE ALSO
intro(3), matherr(3M), values(5).
DG/UX 4.00 Page 2
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