ccos-Cosine of Angle of a Complex Number

Interface

F_COMPLEX ccos (F_TYPE x, F_TYPE y)

Description

ccos() returns the cosine of a complex number, x + iy.

ccos(x,y) is defined as cos (x + iy) = (cos x cosh y- isin x sinh y).

Exceptions

Exceptional Argument       Routine Behavior

|y| = infinity             Invalid argument

(sin x sinh y) > max_      Overflow
float

(cos x cosh y) > max_      Overflow
float