Area under a curve — figure 52
Version 1.0.0 — 23 October 2026

Included files: area-52.svg, README.txt
Source: Silvanus P. Thompson, Calculus Made Easy, 1914, printed page 206 / scan page 226, figure 52
https://commons.wikimedia.org/wiki/File:Calculus_Made_Easy.pdf

Standalone SVG diagram with historical labels. The curve is qualitative; this is a new vector reconstruction, not a facsimile.

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Review: source and new-material ownership recorded in docs/asset-manifest.md;
SVG structure and exact bytes checked for this release on 23 October 2026.
SVG SHA-256: 9f312b87955eba024f9cd8362e521bc3da7bba8429b7d83f230be2b1584deac8
