Push_Nsolve - Texas Instruments TI-89 Developer's Manual

Appendix A: System Routines — Solver

push_nSolve

Declaration: void push_nSolve (EStackIndex i , EStackIndex ki )
Category(ies): Solver
Description: If invoked via push_internal_simplify, ki and i are simplified to deepest
variable, and the simplification of i is done under the temporary influence of
SET_PARTIAL_SIMPLIFY to avoid costly polynomial expansions,
polynomial GCDs, etc.
Pushes the input if these conditions are not met.
Otherwise pushes onto the estack TRUE_TAG, FALSE_TAG or an
equation specifying one approximate solution of the form ki = float, found
by iterative methods.
Takes into account bounds specified by NG_such_that_index.
i
Inputs:
ki
Outputs: None
Assumptions: None
Side Effects: None
Availability: On AMS 2.02 and higher.
TI-89 / TI-92 Plus
Differences: None
See Also: push_solve, push_csolve, push_zeros, push_czeros
Example:
push_Float (4.0);
right_side = top_estack;
push_quantum_as_nonnegative_int (2u);
exponent = top_estack;
push_quantum (8u);
replace_top2_with_pow (exponent);
push_equals (top_estack, right_side);
equation = top_estack;
push_quantum (8u);
push_nSolve (equation, top_estack);
TI-89 / TI-92 Plus Developer Guide
— Indexes the top tag of an internally-simplified equation depending
only on the variable in ki .
— Indexes the top tag of a variable or an equation of the form
variable = constant, representing an initial guess.
/* Push variable x */
/* top_estack = x^2 */
/* x^2 = 4 */
/* Push variable x */
/* Pushes 2.0 */
Not for Distribution
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Beta Version January 26, 2001