Deflecto Challenge A daily Black Box puzzle: fire light rays into a hidden galaxy and find the stars. Rebuilt from a 1980s ZX81 program.

Triangle Peg Puzzle A daily peg puzzle: 15 holes · jump until one peg is left.

• Beamer - Design structural beams:
• New JS code, w/o server-side compute
• Original Pascal code w/server-side calculation

• Framer - Rigid Frame Analysis:
• New JS code, w/o server-side compute
• Original Pascal code w/server-side calculation

• Rewall - Design Structural Retaining Wall with piles:
• New JS code, w/o server-side compute

• Concrete Beam - strength design:
• Strength Design
• Ultimate Design ex. span L=15 ft.

• 2 to 6 leg highway reinforecd concrete bridge piers - by Newmam E. Argraves:
• bridge pier design
• handbook
• handbook PDF
• pier with 5 legs -_is input deck to framer

Non-Linear Curve Fit with fit methods: modern legacy + modern