Texas Instruments TI-89 Developer's Guide

780
Appendix A: System Routines — Math
TI
-
89 / TI
-
92 Plus Developer Guide
Not for Distribution
Beta Version January 26, 2001
push_exponentiate
Declaration:
void
push_exponentiate
(EStackIndex
i
, EStackIndex
j
)
Category(ies):
Math
Description:
Pushes the internally-simplified result of (expression
i
)^(expression
j
) onto
the estack. If expression
i
is a square matrix: pushes the same-size identity
matrix if
j
indexes a zero; pushes the iterated matrix product if
j
indexes a
positive whole number; pushes the inverse matrix or its iterated matrix
product if
j
indexes a negative whole number.
Inputs:
i, j
— Indices of the top tags of internally-simplified algebraic
expressions, algebraic comparisons, 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_dot_exponentiate, raise_to_top, replace_top2_with_pow,
push_sqrt, push_square, push_reciprocal,
replace_top_with_reciprocal
Example:
void push_distrib_base_over_tail (EStackIndex bas, EStackIndex tail)
/* tail indexes a sequence of expressions terminated by END_TAG.
Pushes onto the estack a similar sequence of expression bas raised to
the expressions in tail.
*/
{ if (END_TAG == ESTACK (tail))
push_quantum (END_TAG);
else
{ push_distrib_base_over_tail (bas, next_expression_index (tail));
push_exponentiate (bas, tail);
}
}

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