Replace_Top2_With_Or - Texas Instruments TI-89 Developer's Manual

Appendix A: System Routines — Logic

replace_top2_with_or

Declaration: void replace_top2_with_or (EStackIndex i )
Category(ies): Logic
Description: Replaces the top two expressions with their internally-simplified logical "or."
Inputs: i
Outputs: None
Assumptions: The top two expressions are internally-simplified Boolean expressions.
Side Effects: None
On AMS 2.02 and higher.
Availability:
TI-89 / TI-92 Plus
Differences: None
See Also: or_onto_top, push_or
Example:
/* Replaces the top two expressions with a variable x. */
push_quantum (FALSE_TAG);
i = top_estack;
push_quantum (8u);
replace_top2_with_or (i);
TI-89 / TI-92 Plus Developer Guide
— Indexes the top tag of the internally-simplified Boolean expression
next_expression_index (top_estack).
Not for Distribution
747
Beta Version January 26, 2001