******** fig3.23 **********

	void
	mult_polynomial( POLYNOMIAL poly1, POLYNOMIAL poly2, POLYNOMIAL poly_prod)
	{
		unsigned int i, j;

		zero_polynomial( poly_prod );
		poly_prod->high_power =  poly1->high_power + poly2->high_power;
		if( poly_prod->high_power > MAX_DEGREE )
			error("Exceeded array size");
		else
			for(i=0; i<=poly1->high_power; i++ )
				for(j=0; j<=poly2->high_power; j++)
					poly_prod->coeff_array[i+j] +=
						poly1->coeff_array[i]*poly2->coeff_array[j];
	}