Use of the acos () method to calculate trigonometric functions using Python

This article describes how to use the acos () method to calculate trigonometric functions in Python. it is a basic knowledge in Python learning. For more information, see acos () returns the arc cosine of x, expressed in radians.
Syntax

The following is the syntax of the acos () method:

Acos (x)

Note: This function cannot be directly accessed. Therefore, we need to import the math module and then use the static object of math to call this function.
Parameters

• X -- this must be a numerical value in the range-1 to 1. if x is greater than 1, it produces an error.

Return value

Returns the arc cosine of X in radians.
Example

The following example shows how to use the acos () method.

#! /Usr/bin/pythonimport mathprint "acos (0.64):", math. acos (0.64) print "acos (0):", math. acos (0) print "acos (-1):", math. acos (-1) print "acos (1):", math. acos (1)

When we run the above program, it will produce the following results:

Acos (0.64): 0.876298061168 acos (0): 1.57079632679 acos (-1): 3.14159265359 acos (1): 0.0