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## ASINIndex## NAMEasin, asinf, asinl - arc sine function## SYNOPSIS
## DESCRIPTIONThe fBasin()fP function calculates the arc sine of fIxfP; that is the value whose sine is fIxfP. If fIxfP falls outside the range -1 to 1, fBasin()fP fails and fIerrnofP is set.## RETURN VALUEThe fBasin()fP function returns the arc sine in radians and the value is mathematically defined to be between -PI/2 and PI/2 (inclusive).## ERRORS**EDOM**- fIxfP is out of range.
## CONFORMING TOSVID 3, POSIX, BSD 4.3, ISO 9899. The float and long double variants are C99 requirements.## SEE ALSOacos(3),
atan(3),
atan2(3),
cos(3),
sin(3),
tan(3)
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