Python math library – expm1() method:

The Python consists of a math library, and it has many functions. Such similar function is expm1(). The function mathematically computes value of exp() – 1b. This method in python is there in case of computing this value for data science.

Code 1: Demonstrating the working of expm1()

Python math library – expm1() method for Data Science - PST Analytics

Comparison between exp() -1 and expm1():

We use expm1() instead of exp() – 1 for smaller values of x of the order less than e-10, as it gives more accurate results.

Code 2: Comparison of expm1() and exp() – 1

To learn more about functions in python for data science, you can check this and this as well.

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