Replace_Top_With_Post_Simplified - Texas Instruments TI-89 Developer's Manual

Appendix A: System Routines — Expression Evaluation /
Algebraic Simplification

replace_top_with_post_simplified

Declaration: void replace_top_with_post_simplified (EStackIndex old_top )
Category(ies): Expression Evaluation / Algebraic Simplification
Description: Replaces the internal-tokenized expression on top of the stack with its
external-tokenized form.
Inputs: old_top — EStackIndex of position below the internal-tokenized
Outputs: None
Assumptions: None
Side Effects: May expand expression stack, cause heap compression, or throw an error.
Availability: On AMS 2.03 and higher.
TI-89 / TI-92 Plus
Differences: None
See Also: push_simplify_statements, push_simplify, push_internal_simplify
Example:
If the internal-tokenized form of the complex expression a + b †
A_VAR_TAG B_VAR_TAG IM_RE_TAG, is on top of the expression stack, then
replace_top_with_post_simplified (next_expression_index (top_estack));
replaces that expression with its external-tokenized form, which is
A_VAR_TAG B_VAR_TAG I_TAG MULTIPLY_TAG ADD_TAG.
TI-89 / TI-92 Plus Developer Guide
expression on top of the expression stack.
Not for Distribution
, which is
i
Beta Version January 26, 2001
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