fx-82MS fx-82TL fx-9860GII TI-83
cosh
On a Casio calculator you can calculate the hyperbolic cosine
▷ HYP cosh OPTN F6 F2 F2
or via the CATALOG as
CATALOG P
INPUT SHIFT 4 cosh F1
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