Texas Instruments TI-89 Developer's Guide

Appendix A: System Routines — Expression Evaluation /
Algebraic Simplification
549
TI
-
89 / TI
-
92 Plus Developer Guide
Not for Distribution
Beta Version January 26, 2001
push_less_than_or_equals
Declaration:
void
push_less_than_or_equals
(EStackIndex
i
, EStackIndex
j
)
Category(ies):
Expression Evaluation / Algebraic Simplification
Description:
Pushes onto the estack the internally-simplified equivalent of the inequality
(expression
i
)
≤
(expression
j
).
Inputs:
i
,
j
— Indices of the top tags of internally-simplified strings, algebraic
expressions, or aggregates thereof.
Outputs:
None
Assumptions:
None
Side Effects:
None
Availability:
On AMS 2.02 and higher.
TI
-
89 / TI
-
92 Plus
Differences:
None
See Also: push_not_equals, push_equals, push_less_than,
push_greater_than_or_equals, push_greater_than
Example:
push_Float (2.3);
j = top_estack;
push_Float (3.5);
push_less_than_or_equals (top_estack, j); /* Pushes FALSE_TAG */

Texas Instruments TI-89 Specifications

General

Display size (HxV)	100 x 160 mm
Memory type	639K FLASH ROM, 188K bytes RAM
Compatible operating systems	Operating System 2.09
Battery type	AAA