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# A simple SymPy example¶

First we import SymPy and initialize printing:

In [2]:

    from sympy import init_printing
    from sympy import *
    init_printing()

Create a few symbols:

In [4]:

    x,y,z = symbols('x y z')

Here is a basic expression:

In [6]:

    e = x**2 + 2.0*y + sin(z); e

Out[6]:
$$x^{2} + 2.0 y + \sin{\left (z \right )}$$
In [7]:

    diff(e, x)

Out[7]:
$$2 x$$
In [8]:

    integrate(e, z)

Out[8]:
$$x^{2} z + 2.0 y z - \cos{\left (z \right )}$$
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