IMARCCOSH

IMARCCOSH —

IMARCCOSH(inumber)

IMARCCOSH returns the complex hyperbolic arccosine of the complex number inumber. The branch cut is on the real axis, less than 1.

If inumber is not a valid complex number, IMARCCOSH returns #VALUE! error.

IMARCCOSH("1+j") equals 1.06127506+0.904557j.

IMARCSINH, IMARCTANH.