Texas Instruments TI-89 Developer's Guide

502
Appendix A: System Routines — EStack Arithmetic
TI
-
89 / TI
-
92 Plus Developer Guide
Not for Distribution
Beta Version January 26, 2001
push_reciprocal_of_quantum
Declaration:
void
push_reciprocal_of_quantum
(Quantum
q
)
Category(ies):
EStack Arithmetic
Description:
Pushes tagged fraction 1/
q
onto the estack.
Inputs:
q
— Quantum.
Outputs:
None
Assumptions:
q
> 1.
Side Effects:
None
Availability:
On AMS 2.02 and higher.
TI
-
89 / TI
-
92 Plus
Differences:
None
See Also: push_negate_quantum_as_negint,
push_quantum_as_nonnegative_int,
push_minus_recip_of_quantum,
push_quantum_pair_as_pos_frac
Example:
void push_percent (EStackIndex i)
/* i indexes an algebraic or aggregate expression.
Pushes i divided by 100.
*/
{ if (is_units_term (i))
ER_THROW (ER_INVALID_USE_OF_UNITS);
push_reciprocal_of_quantum (100u);
times_top (i);
}

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