atan2d32(3m) [hpux man page]
atan2d64(3M) atan2d64(3M) NAME
atan2d64(), atan2d128(), atan2d32() - decimal arctangent and quadrant functions SYNOPSIS
DESCRIPTION
The function returns the arctangent of y/x, using the signs of both arguments to determine the quadrant of the return value. is a version of it takes arguments and returns a result. is a version of it takes arguments and returns a result. These math functions are supported for HP-UX 11i Version 3 September 2008 Update and forward. USAGE
To use any of these functions, compile with the option. Make sure your program defines and then includes Link in the math library by specifying or on the linking command line. For more information, see the at the following site: RETURN VALUE
If y and x is -0, If y and x is +0, If y and x is less than 0, returns If y and x is greater than 0, returns If y is less than 0 and x is 0, returns If y is greater than 0 and x is 0, returns If y is greater than 0 and x is -infinity, returns If y is less than 0 and x is -infinity, If y is greater than 0 and x is infinity, returns +0. If y is less than 0 and x is infinity, returns -0. If y and x is finite, returns If y and x is -infinity, returns If y and x is +infinity, returns If x or y is NaN, returns NaN. raises the inexact exception whenever a rounded result does not equal the mathematical result. ERRORS
No errors are defined. SEE ALSO
acosd64(3M), asind64(3M), atand64(3M), cosd64(3M), sind64(3M), tand64(3M), math(5). STANDARDS CONFORMANCE
These functions conform to ISO/IEC TR 24732, "Extension for the programming language C to support decimal floating-point arithmetic". HP Integrity Server Only atan2d64(3M)
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powd64(3M) powd64(3M) NAME
powd64(), powd128(), powd32() - decimal power functions SYNOPSIS
DESCRIPTION
The function returns is a version of it takes arguments and returns a result. is a version of it takes arguments and returns a result. These math functions are supported for HP-UX 11i Version 3 September 2008 Update and forward. USAGE
To use any of these functions, compile with the option. Make sure your program defines and then includes Link in the math library by specifying or on the linking command line. For more information, see the at the following site: RETURN VALUE
and raises the divide-by-zero floating-point exception for y an odd integer < 0. returns +infinity and raises the divide-by-zero floating-point exception for y<0 and not an odd integer. for y an odd integer > 0. returns +0 for y>0 and not an odd integer. returns 1. returns 1 for any x, even NaN. returns 1 for any x, even NaN. returns NaN and raises the invalid floating-point exception for finite x<0 and finite non-integer y. returns +infinity for |x|<1. returns +0 for |x|>1. returns +0 for |x|<1. returns +infinity for |x|>1. returns -0 for y an odd integer < 0. returns +0 for y<0 and not an odd integer. returns -infinity for y an odd integer > 0. returns +infinity for y>0 and not an odd integer. returns +0 for y<0. returns +inf for y>0. Otherwise, if either argument is NaN, then returns NaN. returns the properly signed infinity (or, in some non-default rounding direction modes, the properly signed maximum-magnitude finite num- ber) in lieu of a value whose magnitude is too large, and raises the overflow and inexact exceptions. raises the underflow exception whenever a result is tiny (essentially subnormal or zero) and inexact. raises the inexact exception whenever a rounded result does not equal the mathematical result. ERRORS
For finite x<0 and finite non-integer y, sets to sets to if y is an odd integer < 0. sets to if y<0 and not an odd integer. If the correct value would overflow, sets to SEE ALSO
cbrtd64(3M), expd64(3M), logd64(3M), scalblnd64(3M), scalbnd64(3M), sqrtd64(3M), math(5). STANDARDS CONFORMANCE
These functions conform to ISO/IEC TR 24732, "Extension for the programming language C to support decimal floating-point arithmetic". HP Integrity Server Only powd64(3M)