Push_Cosh - Texas Instruments TI-89 Developer's Manual

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push_cosh

Declaration: void push_cosh (EStackIndex k )
Category(ies): Math
Description: Pushes onto the estack the internally-simplified hyperbolic cosine of the
expression indexed by k .
When k indexes a square numeric matrix, pushes the Float matrix
hyperbolic cosine computed via cosh(eigenvalues(matrix)).
Inputs: k — Index of the top tag of an internally-simplified algebraic expression,
Outputs: None
Assumptions: None
Side Effects: None
Availability: On AMS 2.02 and higher.
TI-89 / TI-92 Plus
Differences: None
See Also: push_sinh, push_tanh, push_acosh, push_asinh, push_atanh
Example:
void push_sech (EStackIndex i)
/* Pushes onto the estack the hyperbolic secant of the expression indexed by i. */
{ if (LIST_TAG == ESTACK (i))
{ map_tail (push_sech, i - 1u);
push_quantum (LIST_TAG);
}
else
{ push_cosh (i);
replace_top_with_reciprocal ();
}
}
TI-89 / TI-92 Plus Developer Guide
algebraic comparison, or aggregate thereof.
Not for Distribution
Appendix A: System Routines — Math
Beta Version January 26, 2001