Replace_Top2_With_Ratio - Texas Instruments TI-89 Developer's Manual

Appendix A: System Routines — EStack Arithmetic

replace_top2_with_ratio

Declaration: void replace_top2_with_ratio (EStackIndex i )
Category(ies): EStack Arithmetic
Description: Replaces the top two expressions on the estack with the
internally-simplified (expression i )/(top expression).
i
Inputs:
Outputs: None
Assumptions: None
Side Effects: None
Availability: On AMS 2.02 and higher.
TI-89 / TI-92 Plus
None
Differences:
See Also: divide_top, push_divide, push_reciprocal,
replace_top_with_reciprocal
Example:
void push_log_gen (EStackIndex i, EStackIndex j)
/* Pushes onto the estack the logarithm to the base indexed by j of
expression indexed by i.
*/
{ Access_AMS_Global_Variables;
if (j)
{ push_ln (i);
i = top_estack;
push_ln (j);
replace_top2_with_ratio (i);
}
else
push_log10 (i);
}
TI-89 / TI-92 Plus Developer Guide
— Index to the top tag of the deeper of the top two expressions of the
estack. These top two expressions are internally-simplified
algebraic expressions, algebraic comparisons, or aggregates
thereof.
Not for Distribution
509
Beta Version January 26, 2001