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# How to find the derivative of a function using Sympy

This recipe helps you find the derivative of a function using Sympy

The derivative of a function is its instantaneous rate of change with respect to one of its variables. This is equivalent to finding the slope of the tangent to the function at a point. We can find the differentiation of mathematical expressions in the form of variables using the diff() function in the SymPy package.

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Example:

```
# Example 1:
```

# Importing libraries

from sympy import diff,pprint

from sympy.abc import p,q

# Defining some expression

expression=(p**2+1)

# Printing expression

pprint(expression)

# differentiation function

diff(expression)

Output - 2 p + 1 2𝑝

```
# Example 2:
```

# Importing libraries

from sympy import diff,pprint, sin, cos

from sympy.abc import p,q

# Defining some expression

expression=(2*sin(p)**2)

# Printing expression

pprint(expression)

# differentiation function

diff(expression)

Output - 2 2.sin (p) 4sin(𝑝)cos(𝑝)

In this way, we can find the derivatives in sympy.

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