IMCOS ( complex-number )

Description: Computes the cosine of the complex number complex-number.

Mathematical Formula:

Arguments:

Name	Type	Description
complex-number	text	The complex number for which the cosine is being computed. complex-number shall be in x + yi or x + yj text format.

Return Type and Value: text – A string containing the cosine of complex-number, in x+yi or x+yj text format.

However, if complex-number is ill-formed, #NUM! is returned.

[Example:

IMCOS("2.3+4.5i") results in -29.9918288739746-33.5589799796873i
IMCOS("-1-4j") results in 14.7547011704838-22.963673499193j

end example]