Guided Walkthrough

Pick a problem from either bank and click through its worked solution. Every step — equations, values, ordering — is emitted by the same deterministic solver and step generator that power the demo pages; the shared Forged step player adds navigation (buttons or ←/→ keys), narration, and canvas highlighting. The selection is kept in the URL, so any problem pair can be linked directly.

5 trusses 6 beams method of joints shear & moment