subtract_from_top Function (ROM Call 0x51B)

AMS 2.02 or higher estack.h

void subtract_from_top (CESI ptr);

Subtracts a value from the top of the EStack.

subtract_from_top subtracts the expression pointed to by ptr from the expression currently at the top of the EStack and stores the result to the top of the EStack, in place of the expression that was substracted from.


Uses: top_estack, push_negate, replace_top2_with_sum
Used by: is_symmetric, did_push_anti_deriv, push_1st_derivative, push_asin, push_csolve, push_czeros, push_def_int, push_desolve, push_extended_prod, push_factor, push_lim, push_max, push_min, push_nsolve, push_solve, push_summation, push_zeros, push_equals, push_greater_than, push_greater_than_or_equals, push_less_than, push_less_than_or_equals, push_not_equals, get_ub, push_div_dif_1c, push_div_dif_1f, push_reciprocal


See also: add_to_top, negate_top, subtract1_from_top