This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Barrow'sDiffTriangle. en Isaac Barrow's Differential Triangle Lectiones opticae et geometricae History of Modern Mathematics David Eugene Smith other versions PDold Differential calculus Isaac Barrow
Page 2023 Free-images.com. All images are Public Domain