Is_Independent_Of_Tail - Texas Instruments TI-89 Developer's Manual

252

is_independent_of_tail

Declaration: Boolean is_independent_of_tail (EStackIndex i , EStackIndex j )
Category(ies): Algebra Utilities, Lists and Matrices
Description: Determines whether the expression indexed by i is syntactically
independent of all the elements in the tail indexed by j .
i
Inputs:
j
Returns TRUE if the expression indexed by i is syntactically independent of
Outputs:
all the elements in the tail indexed by j . Otherwise returns FALSE.
Assumptions: None
Side Effects: None
Availability: All versions of the TI-89 / TI-92 Plus.
TI-89 / TI-92 Plus
Differences: None
See Also: is_free_of_tag, is_independent_of, is_tail_independent_of
Example:
Boolean is_independent_of_elements (EStackIndex i, EStackIndex j)
/* Returns TRUE if the expression indexed by i is syntactically independent
of all the elements in the list indexed by j.
*/
{ return is_independent_of_tail (i, j - 1u);
}
TI-89 / TI-92 Plus Developer Guide
Appendix A: System Routines — Algebra Utilities
— Index of the top tag of an internally-simplified expression.
— Index of a tail of internally-simplified expressions.
Not for Distribution Beta Version January 26, 2001