Texas Instruments TI-89 Developer's Manual page 337

Appendix A: System Routines — Algebra Utilities
reductum_index
Availability: On AMS 1.05 and higher.
TI-89 / TI-92 Plus
Differences: None
See Also: lead_term_index
Example:
push_quantum (8u);
add1_to_top ();
reductum_index (top_estack);
TI-89 / TI-92 Plus Developer Guide
(continued)
/* Push variable x */
/* Returns the index of a one. */
Not for Distribution
295
Beta Version January 26, 2001