Since you’ve tagged this question with sympy, I will give such an example.

From the documentation: http://docs.sympy.org/latest/modules/plotting.html.

```
from sympy import var, plot_implicit
var('x y')
plot_implicit(x*y**3 - y*x**3)
```

Since you’ve tagged this question with sympy, I will give such an example.

From the documentation: http://docs.sympy.org/latest/modules/plotting.html.

```
from sympy import var, plot_implicit
var('x y')
plot_implicit(x*y**3 - y*x**3)
```