Returns the cosine of a complex number.
This function is only available if the Analysis AddIn is installed.
- complexnumber is text representing a complex number, for example as a+bi or a+bj.
- IMCOS returns the cosine of complexnumber, as text - that is, if complexnumber is a+bi, it returns cos(a)cosh(b)-sin(a)sinh(b)i.
- returns -4.18962569096881-9.10922789375534i as text.
- This function currently appears in the AddIn category of the Function Wizard.