R: More Hyperbolic Functions

coth,csch,sech, etc. {pracma} | R Documentation

## More Hyperbolic Functions

### Description

More hyperbolic functions not available in R.

### Usage

    coth(z)
    csch(z)
    sech(z)
    acoth(z)
    acsch(z)
    asech(z)

### Arguments

`z` | numeric or complex scalar or vector.

### Details

The usual hyperbolic cotangens, cosecans, and secans functions and their inverses, computed through the other well known – in R – hyperbolic sine, cosine, and tangens functions.

### Value

Result vector of numeric or complex values.

### Note

These function names are available in Matlab, that is the reason they have been added to the ‘pracma’ package.

### See Also

Trigonometric and hyperbolic functions in R.

### Examples

    coth(1+1i)      # 0.8680 - 0.2176i
    csch(1+1i)      # 0.3039 - 0.6215i
    sech(1+1i)      # 0.4983 - 0.5911i
    acoth(1+1i)     # 0.4024 - 0.5536i
    acsch(1+1i)     # 0.5306 - 0.4523i
    asech(1+1i)     # 0.5306 - 1.1185i

[Package pracma version 2.0.4 Index]