IMLN ( complex-number )

Description: Computes the natural logarithm of complex-number.

Mathematical Formula:

Arguments:

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

Return Type and Value: text – The natural logarithm of complex-number, in x+yi or x+yj text format.

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

[Example:

IMLN("3+4i") results in 1.6094379124341+0.927295218001612i
IMLN("-2.5-34.6j") results in 3.54645723627033-1.64292531532225j

end example]