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HP-UX Reference > Ssind(3M)HP-UX 11i Version 2: December 2007 Update |
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NAMEsind(), sindf(), sindl(), sindw(), sindq() — sine functions of argument specified in degrees DESCRIPTIONsind() returns the sine of x (x specified in degrees). On PA-RISC systems, 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. USAGETo use these functions compile either with the default -Ae option or with the -Aa and -D_HPUX_SOURCE options. To use (for Itanium-based systems) sindw() or sindq(), compile also with the -fpwidetypes option. To use any of these functions, make sure your program includes <math.h>, and link in the math library by specifying -lm on the compiler or linker command line. For more information, see the HP-UX Floating-Point Guide. RETURN VALUEIf x is ±INFINITY, sind() returns NaN and raises the invalid exception. If x is NaN, sind() returns NaN. If x is NaN or ±INFINITY, sind() returns NaN. SEE ALSOacosd(3M), asind(3M), atand(3M), atan2d(3M), cosd(3M), sin(3M), sincosd(3M), tand(3M), math(5). |
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