tuple_atan2

Herror ::tuple_atan2 ( const HTuple &Y, const HTuple &X, double *ATan ) Herror ::tuple_atan2 ( const HTuple &Y, const HTuple &X, HTuple *ATan )

Compute the arctangent of a tuple for all four quadrants.

::tuple_atan2 computes the arctangent of the input tuples Y/X while treating all four quadrants correctly. The arctangent is always returned as a floating point number. The arctangent of a string is not allowed.

Parameters

`Y` (input_control)	number(-array) `->` HTuple.double / long
Input tuple of the y-values.

`X` (input_control)	number(-array) `->` HTuple.double / long
Input tuple of the x-values.

`ATan` (output_control)	number(-array) `->` (HTuple.) double *
Arctangent of the input tuple.

Alternatives

::tuple_atan, ::tuple_asin, ::tuple_acos

See also

::tuple_tan

Module

Operators not requiring licensing