Instructions: To add a question/comment to a specific line, equation, table or graph simply click on it.
Click on the annotations on the left side of the paper to read and reply to the questions and comments.
These two pages are from the Zhoubi suanjing (Arithmetical Classic ...
This is just Pythagoras original proof. You start by inscribing a s...
If the length of the hypotenuses of the triangles is $c$ and the le...