# Examples¶

## Model Examples¶

These are examples of the flexibility of `symfit`

Models. This is because
essentially any valid `sympy`

code can be provided as a model. This makes
it very intuitive to define your mathematical models almost as you would on
paper.

## Interactive Guess Module¶

The `symfit.contrib.interactive_guess`

contrib module was designed to make
the process of finding initial guesses easier, by presenting the user with an
interactive `matplotlib`

window in which they can play around with the
initial values.