Capture inputs with unit labels
Use structured fields for span, distributed load, support condition, and units. The applet should reject ambiguous entries rather than guessing.
Beam Calculator applet example
A local-first calculator pattern for turning repeat engineering-style worksheets into inspectable desktop applets without uploading private project data to a hosted builder by default.
What this example demonstrates
The Beam Calculator page mirrors the content style used across YAAA.app: plain-language inputs, visible assumptions, deterministic formulas, and clear review checkpoints. It is an example workflow, not professional engineering advice.
- Local inputs: span, load, material notes, and project comments are entered in the applet on the user's machine.
- Visible math: formulas, units, and intermediate values are shown before export so users can validate the result.
- Guardrails: missing units, unrealistic ranges, and unsupported cases stop the workflow instead of producing confident-looking output.
- Evidence: results can include a timestamped note showing assumptions, reviewer status, applet version, and validation checks.
Show calculations before actions
Display the formula path and assumptions in a readable panel. If AI assisted the setup, keep generated explanations editable and reviewable.
Export a cautious report
Export notes with disclaimers, version information, and a required reviewer field. Do not present example output as certified design.
Why make calculators as local applets?
Teams often have private spreadsheets, project names, drawings, and assumptions embedded in calculation tools. A YAAA-style local applet can keep that workflow close to the user's files, call approved local scripts, and use optional services only when explicitly configured.
Explore more applet patterns → · Review local-first security notes → · Read the disclaimer →