Changes

==Examples==

==Examples==

#IMLOG2("2+3i")=1.85021985921295+1.41787163085485i

#=IMLOG2("2+3i")=1.85021985921295+1.41787163085485i

#IMLOG2("5-6i")=2.96536866900967-1.26388460522614i

#=IMLOG2("5-6i")=2.96536866900967-1.26388460522614i

#IMLOG2("15")=3.90689059590921

#=IMLOG2("15")=3.90689059590921

#IMLOG2("11i")=3.45943161890355+2.26618007108801i

#=IMLOG2("11i")=3.45943161890355+2.26618007108801i

#IMLOG2("0")=NULL

#=IMLOG2("0")=NULL

*Imln("8") for that it should consider the imaginary value is zero,but calci is not considering like EXCEL

*Imln("8") for that it should consider the imaginary value is zero,but calci is not considering like EXCEL