Java Math cosh()

The hyperbolic cosine is equivalent to ( (e^x + e^-x)/2), where e is Euler's number.

The syntax of the cosh() method is:

Math.cosh(double value)

Here, cosh() is a static method. Hence, we are accessing the method using the class name, Math.

cosh() Parameters

The cosh() method takes a single parameter.

• value - angle whose hyperbolic function is to be determined

Note: The value is generally used in radians.

cosh() Return Values

• returns the hyperbolic cosine of value
• returns NaN if the argument value is NaN
• returns 1.0 if the argument is 0

Note: If the argument is infinity, then the method returns positive infinity.

Example 1: Java Math cosh()

In the above example, notice the expression,

Math.cosh(value1)

Here, we have directly used the class name to call the method. It is because cosh() is a static method.

Note: We have used the Java Math.toRadians() method to convert all the values into radians.

Example 2: cosh() Returns NaN and Infinite

In the above example,

• Double.POSITIVE_INFINITY - implements positive infinity in Java
• Double.NEGATIVE_INFINITY - implements negative infinity in Java
• Math.sqrt(-5) - square root of a negative number is not a number

We have used the Java Math.sqrt() method to calculate the square root of a number.

Note: The cosh() method returns positive infinity for both negative and positive infinity arguments.

Recommended Tutorials

• Java Math.sinh()
• Java Math.tanh()