Concept · #diagrams
Diagrams
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Bhāskara drew a figure and wrote “Behold!”. Can a picture ever be a proof?
Every year I tell my Class 10 students the story: the twelfth-century mathematician Bhāskara II gave the theorem we call Pythagoras's as a single figure, four right triangles arranged inside a square, with one word underneath: Behold! Historians tell me the real…
Started by Vikram Sethi3 replies -
Can a picture be a proof? A graph theorist on diagrams, doubt and Lakatos
Graph theory is the part of mathematics most at home in pictures, and the part most often betrayed by them. When does a drawing prove anything?
Written by Zsófia Bodnár2 replies -
Toegye drew ten diagrams to teach a young king how to become good. Can moral education be done by diagram?
My students see Toegye every time they pay with a 1,000-won note, and almost none of them know about his last great work. In 1568, near the end of his life, Yi Hwang (Toegye) presented the Ten Diagrams on Sage Learning to…
Started by Ji-woo Ryu1 reply