Plot implicit functions

import sympy
from sympy import symbols, plot_implicit, Eq, And, Or
 
x, y = symbols('x y')

p0 = plot_implicit(And(Or(y > 0.75, x < 0.25), y > x), (x,0,1), (y,0,1), line_color="lightblue", show=False, aspect_ratio=(1, 1), points=1000, backend="matplotlib")
p1 = plot_implicit(Eq(x**2 + (y-x)**2, (1-y)**2), (x,0,1), (y,0,1), line_color="red", show=False, aspect_ratio=(1, 1), points=1000, backend="matplotlib")
p2 = plot_implicit(Eq(x**2 + (1-y)**2, (y-x)**2), (x,0,1), (y,0,1), line_color="green", show=False, aspect_ratio=(1, 1), points=1000, backend="matplotlib")
p3 = plot_implicit(Eq((y-x)**2 + (1-y)**2, x**2), (x,0,1), (y,0,1), line_color="blue", show=False, aspect_ratio=(1, 1), points=1000, backend="matplotlib")

p0.extend(p1)
p0.extend(p2)
p0.extend(p3)
p0.show()

Plotting - SymPy 1.12 documentation

The plotting module allows you to make 2-dimensional and 3-dimensional plots. Presently the plots are rendered using matplotlib as a backend. It is also possible to plot 2-dimensional plots using a TextBackend if you do not have matplotlib.

https://docs.sympy.org/latest/modules/plotting.html#sympy.plotting.plot_implicit.plot_implicit