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IMLN(inumber)

 
 Returns the natural logarithm of a complex number in x + yi or x + yj text format.

 inumberThe complex number you want the natural logarithm of.

 REMARKS
 
  		• This function is only available if you have the Analysis ToolPak add-in installed.
     
  		• If "inumber" is not in the form x + yi or x + yj, then #NUM! is returned.
     
  		• You can use the COMPLEX() function to convert real and imaginary coefficients into a complex number.

     EXAMPLES
     
     A
    1=IMLN("3+4i") = 1.6094379124341+0.927295218001612i
    2=IMLN("3+4j") = 1.6094379124341+0.927295218001612j
    3=IMLN("-3+4i") = 1.6094379124341+2.21429743558818i
    4=IMLN("4i") = 1.38629436111989+1.5707963267949i
    5=IMLN("4") = 1.386
    6=IMLN("4")-LN(4) = 0.000
    7=IMLN("some text") = #NUM!
    		 
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