IMLN

Returns the natural logarithm of a complex number.

Sample Usage

IMLN("3+4i")
IMLN(C5)

Syntax

IMLN(complex_number)

• complex_number - The complex number whose natural logarithm is to be computed.
  
  

Examples

IMLN("3+4i") returns a value of 1.6094379124341+0.927295218001612i.
IMLN(C5) returns the natural logarithm of the complex number contained in C5.

Notes

• IMLN is equivalent to LN for all non-complex values that are greater than zero.
• IMLN is equivalent to LOG given base of e, or EXP(1) for all non-complex values that are greater than zero.
• The natural logarithm of a complex number is defined as follows:
  • ln(x+yi) = √(x²+y²) + i tan^-1(y/x)