ReferenceFunctionsMath Functions
COSH
COSH: Returns the hyperbolic cosine of a number.
Summary
COSH computes (e^x + e^-x) / 2.
Remarks
- Domain: accepts any real number.
- Radians: this function is hyperbolic, so the input is not treated as an angle in radians.
- Errors: no function-specific domain errors are produced.
Examples
Hyperbolic cosine at zero
Grid
| Cell | Value | |
|---|---|---|
| No inputs on Sheet1. | ||
Formula
=
Result
Not evaluated yet.
Expected
1
Hyperbolic cosine at one
Grid
| Cell | Value | |
|---|---|---|
| No inputs on Sheet1. | ||
Formula
=
Result
Not evaluated yet.
Expected
1.5430806348152437
Related functions
FAQ
Can COSH produce #NUM! domain errors?
No function-specific domain errors are enforced for real inputs.
Runtime metadata
Category
Math
Signature
COSH(arg1: Number)Arity
min 1, max 1
Arguments
arg1Number · Scalar · coercion NumberLenientText
Caps
PUREELEMENTWISENUMERIC_ONLY
Source