This function returns the natural logarithm of a complex number.

Syntax

IMLN(complexnum)

Arguments

The complexnum argument is a complex number for which to return the natural logarithm.

Remarks

An error is returned if the complexnum argument is not in the form "x+yi" or "x+yj". For more information, refer to Complex Numbers in Engineering Functions.

Data Types

Accepts number and string data. Returns string data.

Examples

IMLN("2+5j")

Version Available

This function is available in product version 2.0 or later.

See Also

IMEXP | IMLOG10 | IMLOG2 | Engineering Functions | Complex Numbers in Engineering Functions