||'''Book'''|| Advanced Engineering Mathematics || ||'''Author'''|| Erwin Kreyszig || ||'''Edition'''|| 8th Edition || /* code_begins */ {{{ #Kreyszig Problemset 12.8 problem 8 a=ComplexNumber(-10,-0.1) b=ComplexNumber(-10,0.1) print a.log() print b.log()}}} /* code_ends */ * '''Solution by''': * , , * , ,