fx-82MS fx-82TL fx-9860GII TI-83
cosh
On a TI calculator you can calculate the hyperbolic cosine via the CATALOG as
CATALOG ⎵
2nd 0 ►cosh( ENTER
Example 1
To calculate cosh (0) = 1
cosh ≣ cosh 0 EXE cosh 0 1
Example 2
To calculate cosh (4,9) = 67,14861313°
cosh ≣ 4 · 9 EXE cosh 4.9 67.14861313
Example 3
To calculate sech (0) = 1
cosh x⁻¹ ≣ 0 EXE SHIFT ) EXE Ans⁻¹ 1