HP-UX Reference (11i v1 00/12) - 3 Library Functions N-Z (vol 7)
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STANDARD Printed by: Nora Chuang [nchuang] STANDARD
/build/1111/BRICK/man3/nan.3m
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s
sind(3M) sind(3M)
NAME
sind(), sindf() - degree-valued sine functions
SYNOPSIS
#include <math.h>
double sind(double x);
float sindf(float x);
DESCRIPTION
sind() is a degree-valued version of the sin() function. It returns the sine of x (x specified in degrees).
sind() may lose accuracy when x is far from zero.
sindf() is a float version of sind(); it takes a float argument and returns a float result.
sind() and sindf() are not specified by any standard, but sindf() is named in accordance with the
conventions specified in the "Future Library Directions" section of the ANSI C standard.
To use these functions, compile either with the default
-Ae option or with the -Aa and
-D_HPUX_SOURCE
options. Make sure your program includes <math.h>. Llink in the math library by
specifying
-lm on the compiler or linker command line.
RETURN VALUE
If x is NaN or ±INFINITY, sind() returns NaN.
If the correct value after rounding would be smaller in magnitude than
MINDOUBLE, sind() returns
zero.
ERRORS
No errors are defined.
SEE ALSO
acosd(3M), asind(3M), atand(3M), atan2d(3M),cosd(3M), sin(3M), tand(3M), math(5), values(5).
HP-UX Release 11i: December 2000 − 1 − Section 3−−863
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