Python – math.cosh() function

Math module contains a number of functions which is used for mathematical operations. The math.cosh() function returns the hyperbolic cosine value of a number.

Syntax: math.cosh(x)

Parameter:This method accepts only single parameters.

• x :This parameter is the value to be passed to cosh()

Returns:This function returns the hyperbolic cosine value of a number.

Below examples illustrate the use of above function:

Example 1:

 `# Python code to implement ` `# the cosh()function ` `       `  `# importing "math" ` `# for mathematical operations   ` `import` `math   ` `      `  `a ``=` `math.pi ``/` `6` `       `  `# Return the hyperbolic cosine value of numbers  ` `print` `(math.cosh(``7``)) ` `print` `(math.cosh(``56``)) ` `print` `(math.cosh(``2.45``)) ` `print` `(math.cosh(``1``)) `

Output:

```548.3170351552121
1.045829748006498e+24
5.8373201528613805
1.5430806348152437
```

Example 2:

 `# Python code implementation of  ` `# the cosh() function ` `import` `math  ` `import` `numpy as np  ` `import` `matplotlib.pyplot as plt   ` `    `  `in_array ``=` `np.linspace(``1``, np.pi``*``*``2``, ``30``)  ` `    `  `out_array ``=` `[]  ` `    `  `for` `i ``in` `range``(``len``(in_array)):  ` `    ``out_array.append(math.cosh(in_array[i]))  ` `    ``i ``+``=` `1` `     `  `print``(``"Input_Array : \n"``, in_array)   ` `print``(``"\nOutput_Array : \n"``, out_array)   ` `  `  `  `  `plt.plot(in_array, out_array, ``"go-"``)   ` `plt.title(``"math.cosh()"``)   ` `plt.xlabel(``"X"``)   ` `plt.ylabel(``"Y"``)   ` `plt.show()  `

Output:

```Input_Array :
[1.         1.30584843 1.61169686 1.91754528 2.22339371 2.52924214
2.83509057 3.14093899 3.44678742 3.75263585 4.05848428 4.3643327
4.67018113 4.97602956 5.28187799 5.58772641 5.89357484 6.19942327
6.5052717  6.81112012 7.11696855 7.42281698 7.72866541 8.03451384
8.34036226 8.64621069 8.95205912 9.25790755 9.56375597 9.8696044 ]

Output_Array :
[1.5430806348152437, 1.9808808604882286, 2.6054281010353004, 3.475601381008832,
4.673436054326172, 6.311857665383541, 8.545327974639738, 11.584406799892538,
15.715602486950852, 21.328382407531667, 28.951889891868053, 39.30482907505833,
53.36322053774325, 72.45241538606689, 98.37204237377239, 133.56566742304807,
181.35116015020702, 246.23348513897733, 334.32940627527836, 453.94414303138643,
616.3543428169035, 836.8711839061114, 1136.2838326866956, 1542.8193367770289,
2094.8037224129744, 2844.275170350752, 3861.889901480525, 5243.583273208655,
7119.614059693799, 9666.84456304416]
```

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