1. 1. Introduction
2. 2. Theory
3. 1. 2.1. Strong Form
   2. 2.2. Weak Form
   3. 2.3. Lagrangian Form
   4. 2.4. Solid Mechanics
4. 3. Implementations
5. 1. 3.1. Collocation PINNs
   2. 3.2. Variational PINNs
   3. 3.3. Lagrangian PINNs
6. 4. Design
7. 1. 4.1. Boundary Conditions
   2. 4.2. Domains
8. 5. Examples
9. 1. 5.1. Poisson Equation
10. 6. API Documentation