The input is in terms of radians and should be within the range -1 to 1. This function returns the inverse of the sine, which is also known as the arc sine of a complex number. Print(math.sin(math.pi/3)) #pi/3 radians is converted to 60 degrees Code example for sin, cos, and tan:īelow we have a simple code example for the 3 trigonometric functions defined above, import math The input here is an angle in terms of radians. This function returns the tangent of the value passed to it, i.e sine/cosine of an angle. The input x is an angle represented in radians. This function returns the cosine of the value passed (x here). The input x should be an angle mentioned in terms of radians (pi/2, pi/3/ pi/6, etc). This function returns the sine of the value which is passed (x here). Now let's see the various trigonometric functions in action, one by one. In the code example below, we have used the degrees() and radians() methods, import math It returns the arc tangent of the number in radians. It returns the arc sine of the number in radians. It returns the arc cosine of the number in radians. It returns the tangent of the number in radians. It returns the sine of the number (in radians). It returns the cosine of the number (in radians). Most Common Trigonometric Functions in Python Quick Fact: All the trigonometric functions in Python assume that the input angle is in terms of radians.Īlso, as we study mathematics, pi/2 90 degrees and pi/3 is 60 degrees, the math module in python provides a pi constant that represents pi which can be used with the trigonometric function. Radians(value): This method converts the value passed to it from degrees to radians. There are 2 helper methods that help convert values from radians to degrees and vice-versa so that you can check the value in any format you want.ĭegrees(value): This method converts the value passed to it from radians to degrees. These functions can be used after importing the math module or by referencing the math library with the dot operator as follows: math.function_name(parameter) The math library in python has a plethora of trigonometric functions which are enough for performing various trigonometric calculations in just minimal lines of code.

Sin tan cos formula