cosh in R: How to Use cosh() Function in R

Hyperbolic functions in R calculate the hyperbolic cosine, sine, tangent, and their inverses, arc-cosine, arc-sine, arc-tangent.

cosh in R

The cosh() is a built-in R function that calculates the hyper tangent of cosine value. It accepts the numerical value as an argument and returns the hyper tangent of the cosine of that numeric value.

To calculate the hyper tangent of cosine value in R, use the cosh() function. The cosh() function calculates the hyperbolic cosine of the given value.

Syntax

cosh(x)

Parameters

The x is a column to compute on.

Example

Let’s calculate the cosh value of 1.

cosh(1)

Output

[1] 1.543081

Let’s calculate the cosh value of 0.

cosh(0)

Output

[1] 1

Calculating cosh() of complex number

Define a complex value and pass that value to the cosh() function.

d <- 5 + 1i
cosh(d)

Output

[1] 40.09581+62.43985i

Plotting the cosh() function to a graph

We can use the seq() function to create a series of values and pass that to the plot() function, which will create a line chart.

dt <- seq(-1, 1, by = 0.05)
plot(dt, cosh(dt), typ = "l", col = "red")
abline(v = 0, lty = 6, col = "blue")

Output

Applying cosh() function to a Vector

To create a Vector in R, use the c() function. Then pass that vector to the cosh() function.

rv <- c(-1, 0.5, 0, 0.5, 1)
cosh(rv)

Output

[1] 1.543081 1.127626 1.000000 1.127626 1.543081

Passing a pi to the cosh() function

The pi is an inbuilt constant in R programming, and its value is 3.141593.

Let’s find the pi constant’s cosh() value.

cosh(pi)

Output

[1] 11.59195

Let’s see another example of pi.

cosh(pi / 4)

Output

[1] 1.324609

That is it for this tutorial.

See also

R atanh()

R tanh()

R atan()

R tan()

R sin()