What is the ACOSH function in Excel?
The ACOSH function is one of the math functions of Excel. It returns the inverse hyperbolic cosine of a number.
The domain of ACOSH is the interval [1,infinit] and it is undefined elsewhere.
We can find this function in Math&trig of insert function Tab.
How to use ACOSH function in excel
- Click on an empty cell (like F5 )

2. Click on fx icon (or press shift+F3)

3. In the insert function tab you will see all functions

4. Select math and trig category
5. Select ACOSH function
6. Then select ok

7. In the function arguments Tab you will see ACOSH function
8. In the Number section you can enter any real number equal to or greater than 1.
9. You will see the result in formula result section ( ACOSH (1)=0)

Examples of ACOSH function in excel
Example 1:
How to use ACOSH function in excel?
You can see examples of ACOSH function below:

acosh(1) ----->>>>answer is 0
acosh(10) ----->>>>answer is 2.993
acosh(100) ----->>>>answer is 5.298
acosh(1000) ----->>>>answer is 7.600
acosh(10000) ----->>>>answer is 9.903
Example 1:
How to use ACOSH function in excel?
math.acosh(a)
How to plot Y=ACOSH(X) with python code in excel
we can use Python code for acosh function in excel:
import math
import numpy as np
import matplotlib.pyplot as plt
x =np.linspace(1,10000, 1000)
lenx=len(x)
y=[]
for i in range(lenx):
y.append(math.acosh(x[i]))
i +=1
plt.plot(x,y)
plt.show()
What is the purpose of ACOSH function?
It returns the inverse hyperbolic cosine of a number.
What is the Return value of ACOSH function?
It returns a number.
How many arguments does ACOSH function have?
This function has just 1 Argument.
The argument of ACOSH function is number.
In the Number section you can enter any real number equal to or greater than 1.
The argument of ACOSH function is required and not optional.
ACOSH(number) = number
Which version of excel supports ACOSH function?
This function is available for all excel versions (2003-2019)