Texas Instruments TI89 Developer Guide - Page 988
push_csolve, push_zeros
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946 Appendix A: System Routines - Solver push_solve Declaration: void push_solve (EStackIndex i, EStackIndex vi) Category(ies): Solver Description: If invoked via push_internal_simplify, ki and i are simplified to deepest variable(s). Pushes onto the estack another Boolean expression that describes the real solution set, using the real-branch of any fractional powers. Inputs: i - Indexes the top tag of an internally-simplified Boolean expression that is usually one or more equations and/or inequalities joined by "and" operators. vi - Indexes a variable, an equation of the form variable = constant representing an initial guess, or a list of variables and/or such initial guesses. Outputs: None Assumptions: None Side Effects: None Availability: On AMS 2.02 and higher. TI-89 / TI-92 Plus Differences: None See Also: push_csolve, push_nSolve, push_zeros, push_czeros Example: push_quantum_as_nonnegative_int(4u); right_side = top_estack; push_quantum_as_nonnegative_int(2u); exponent = top_estack; push_quantum (8u); /* Push variable x */ replace_top2_with_pow (exponent); /* top_estack -> x^2 */ push_equals (top_estack, right_side); equation = top_estack; /* equation -> x^2 = 4 */ push_quantum (8u); /* Push variable x */ push_solve (equation, top_estack); /* Pushes x = -2 or x = 2 */ TI-89 / TI-92 Plus Developer Guide Not for Distribution Beta Version January 26, 2001
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