CAD Problems

2D Polygon Area
Easy
Line Intersection
Easy
Boolean Shape Ops
Medium
Curve Lofting
Medium
3D Surface Recon
Hard
Mesh Simplification
Hard
Bounding Box Calc
Easy
Param Constraint
Medium
Bezier → NURBS
Hard
DXF Entity Parser
Easy

CAM Problems

Rect Pocket Path
Easy
Drill G-Code Gen
Medium
Tool Seq Opt
Medium
Collision Detect
Hard
Adaptive Feed Plan
Hard
Spindle Speed Calc
Easy
Multi-Axis Path
Medium
Cutter Selection
Hard
Island Milling
Medium
Tool Change Seq
Easy

CAE Problems

Stiffness Matrix
Easy
Linear Solver
Easy
2D Mesh Gen
Medium
Apply BCs
Medium
Nonlinear Mat Mod
Hard
Large Deform Solv
Hard
Elem Connectivity
Easy
Buckling Analysis
Medium
Contact Algorithm
Hard
Modal Analysis
Medium

CFD Problems

1D Advection
Easy
Compute Div
Easy
Pressure Poisson
Medium
2D FVM Solver
Medium
Navier–Stokes
Hard
Turb Model Int
Hard
Laminar Profile
Easy
Upwind Scheme
Medium
P-V Coupling
Hard
Boundary Layer
Medium

Materials Problems

Crystal Classify
Easy
Stress–Strain Plot
Easy
Rule of Mixtures
Medium
Phase Diagram
Medium
Anisotropic Elasticity
Hard
Composite Lamina
Hard
Grain Distribution
Easy
Fatigue Estimation
Medium
Creep Model
Hard
Diffusion Coeff
Medium