bcmod Get modulus of an arbitrary precision number &reftitle.description; stringbcmod stringleft_operand stringmodulus Get the modulus of the left_operand using modulus. &reftitle.parameters; left_operand The left operand, as a string. modulus The modulus, as a string. &reftitle.returnvalues; Returns the modulus as a string, or &null; if modulus is 0. &reftitle.examples; ]]> &reftitle.seealso; bcdiv