2 ms·
Reminds me of yet another cool story from Richard Feynman about beating an abacus salesman with mental arithmetic: http://www.ee.ryerson.ca/~elf/abacus/feynman.
by ranko 11y ago
Reminds me of yet another cool story from Richard Feynman about beating an abacus salesman with mental arithmetic: http://www.ee.ryerson.ca/~elf/abacus/feynman.html http://www.ee.ryerson.ca/~elf/abacus/feynman.html
- int0x80 11y agoThat is a very cool story. Feynman tells through his books a lot of this tricks to do arithmetic.