Texas Instruments TI-89 - Is_Tail_Independent_Of

256
Appendix A: System Routines — Algebra Utilities
TI
-
89 / TI
-
92 Plus Developer Guide
Not for Distribution
Beta Version January 26, 2001
is_tail_independent_of
Declaration:
Boolean
is_tail_independent_of
(EStackIndex
i
, EStackIndex
j
)
Category(ies):
Algebra Utilities, Lists and Matrices
Description:
Determines whether all of the elements of the tail indexed by
i
are
syntactically independent of the expression indexed by
j
.
Inputs:
i
— Index of the top tag of a tail of internally-simplified expressions.
j
— Index of the top tag of an internally-simplified expression.
Outputs:
Returns TRUE if all of the elements of the tail indexed by
i
are syntactically
independent of the expression 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_independent_of, is_independent_of_tail
Example:
push_quantum (END_TAG);
push_quantum (8u); \* push variable x *\
push_expression (Integer1Index);
is_tail_independent_of (top_estack, IntegerMinus1Index); \* returns TRUE *\