The Derivimeter by Ott #calculus #derivative @ChrisStaecker
The Derivimeter by Ott #calculus #derivative @ChrisStaecker
Uploaded January 2025 | Updated September 2026, 1 week ago
This is a real thing that people really used- it measures the derivative of a curve drawn on paper.
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Chris Staecker |

The Derivimeter by Ott #calculus #derivative

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