question: return standard deviation , times 256 using newton 's iteration . concode_field_sep int nMean concode_elem_sep int nVariance concode_field_sep int getVariance concode_elem_sep int getMean concode_elem_sep void push
target: int function ( ) { int loc0 = getVariance ( ) << 8 ; if ( loc0 < 0 ) throw new Error ( Error . PACKAGE . ALGORITHM , ErrorCodes . STATISTICS_VARIANCE_LESS_THAN_ZERO , new Integer ( loc0 ) . toString ( ) , null , null ) ; return MathPlus . sqrt ( loc0 ) ; }