returns the interpolated or extrapolated y-value corresponding to the supplied x-value . if any supplied value is nan , returned value will also be nan . method does not do any input validation such that if the supplied points are coincident or define a vertical line , the method may return infinity , - infinity , or nan . concode_field_sep PlaceHolder placeHolder concode_field_sep double findX concode_elem_sep int dataIndex concode_elem_sep int dataIndex concode_elem_sep int binarySearchResultToIndex concode_elem_sep double findLogY concode_elem_sep double[] findLogY concode_elem_sep double findLogLogY concode_elem_sep double[] findLogLogY
double function ( double arg0 , double arg1 , double arg2 , double arg3 , double arg4 ) { return arg1 + ( arg4 - arg0 ) * ( arg3 - arg1 ) / ( arg2 - arg0 ) ; }