# Turn a Series Expansion into Function in Mathematica

## #Mathematica

Turn a series expansion in Mathematica into a function

`Series`

in Mathematica returns a series with higher orders denoted as $\mathscr O[x^3]$. To define a function out of this returned expression, we have to truncate this tail using `Normal`

.

What `Normal`

does here is to truncate the higher orders.

Published:
by Lei Ma;

## Table of Contents

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