# Reference request with examples, finite difference method for $1D$ heat equation ,with mixed boundary conditions.

I am looking for book or online material on numerical (finite difference method) solution of $$1D$$ heat equation, given initial distribution of temperature, with mixed boundary conditions: Dirichlet condition at one end of the rod and Robin condition at the other end of the rod.

Using Crank-Nicholson Method, Explicit method and Implicit method.

It is better if book contains example of solutions.

Thank you.