question: fast approximation of the exponential function see http://www.javamex.com/tutorials/math/exp.shtml concode_field_sep PlaceHolder placeHolder concode_field_sep placeholderType placeHolder
target: double function ( double arg0 ) { arg0 = 1d + arg0 / 256d ; arg0 *= arg0 ; arg0 *= arg0 ; arg0 *= arg0 ; arg0 *= arg0 ; arg0 *= arg0 ; arg0 *= arg0 ; arg0 *= arg0 ; arg0 *= arg0 ; return arg0 ; }