ImCos
Description
Calculate the cosine value for a complex.
- \[ImCos(C) = \frac{e^{iC}+e^{-iC}}{2}\]
or
- \[ImCos \left (x+iy \right ) = cos(x)cosh(y)-i*sin(x)sinh(y)\]
where C is a complex, and \(i=\sqrt{-1}\).
Syntax
complex ImCos(complex cX)
Parameters
cX
- The complex number.
Return
Return the cosine value for the specified complex.
Example
imCos(3+4i) = ; // -27.034945603074-3.8511533348118i complex c1 = 1+1i; complex c2; c2 = imCos(c1); c2 = ; // 0.83373002513115-0.98889770576287i