Familiar with FEniCS

pytop is extended FEniCS for topology optimization. So, almost fuctions are from FEniCS. If you are new of FEniCS, you need to be familiar with FEniCS. Follwoing instruction for FEniCS may help you:

• Solving PDEs in Python
• Automated Solution of Differential Equations by the Finite Element Method
• Numerical tours of continuum mechanics using FEniCS
• A FEniCS Tutorial