Appendix A: System Routines — Lists and Matrices
681
TI
-
89 / TI
-
92 Plus Developer Guide
Not for Distribution
Beta Version January 26, 2001
push_cross_product
Declaration:
void
push_cross_product
(EStackIndex
i
, EStackIndex
j
)
Category(ies):
Lists and Matrices, Math
Description:
Computes the cross product of two vectors.
Inputs:
i, j
— EStackIndexes of two vectors represented in one of three ways:
both as lists, both as single row matrices, or both as single column
matrices. Each must have either two elements or three elements.
Outputs:
Pushes onto the expression stack the cross product in the same form as
the input. List input generates list output. Row matrix input generates row
matrix output. Column matrix input generates column matrix output.
Assumptions:
Arguments must be in internal-tokenized form. External-tokenized form
may cause an error throw.
Side Effects:
May expand expression stack, cause heap compression, or throw an error.
Availability:
On AMS 2.00 and higher.
TI
-
89 / TI
-
92 Plus
Differences:
None
See Also:
None
Example:
/* If i is the EStackIndex of the internal-tokenized form of {1, a, b},
and j is the EStackIndex of the internal-tokenized form of {c, 2, 3}, then */
push_cross_product (i, j);
/* pushes the internal-tokenized form of {3*a-2*b, b*c-3, 2-a*c} onto the
expression stack. */
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