Further information

How can you plot a function

It is possible to plot a function using sympy using the sympy.plot function:

Usage

sympy.plot(expression)

So for example, here is a plot of \(f(x)=x^2 + 3x + 1\):

import sympy as sym

x = sym.Symbol("x")
sym.plot(x ** 2 + 3 * x + 1)

<sympy.plotting.backends.matplotlibbackend.matplotlib.MatplotlibBackend at 0x7f81de339160>

It is possible to specify the \(x\) and combine it with other plots:

sym.plot(x ** 2 + 3 * x + 1, xlim=(-5, 5))

<sympy.plotting.backends.matplotlibbackend.matplotlib.MatplotlibBackend at 0x7f81d04ccf50>

This plotting solution is good if you want to take a look at a function quickly but it is not recommended. The main python library for plotting is called matplotlib and is covered in Matplotlib.

• Here is the sympy documentation for plotting: https://docs.sympy.org/latest/modules/plotting.html

• Here is the official matplotlib documentation: https://matplotlib.org