Factor_Exponent_Index - Texas Instruments TI-89 Developer's Manual

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factor_exponent_index

Declaration: EStackIndex factor_exponent_index (EStackIndex k )
Category(ies): Algebra Utilities
Description: If k indexes an exponentiation tag, returns the index of the exponent.
Otherwise, if IS_ARITH_APPROX is true, returns Float1Index. If
IS_ARITH_APPROX is false, returns Integer1Index.
k — Index of the top tag of an algebraic expression.
Inputs:
Outputs: If k indexes an exponentiation tag, returns the index of the exponent.
Assumptions: None
Side Effects: None
Availability: All versions of the TI-89 / TI-92 Plus.
TI-89 / TI-92 Plus
Differences: None
See Also: factor_base_index
Example:
EStackIndex lead_exponent_index (EStackIndex i)
/* Returns index of the lead exponent of any expression indexed by i. */
{ return factor_exponent_index (lead_factor_index (i));
}
TI-89 / TI-92 Plus Developer Guide
Appendix A: System Routines — Algebra Utilities
Not for Distribution Beta Version January 26, 2001