The proof, known to be so hard that a mathematician once offered 10 martinis to whoever could figure it out, uses number ...

1. Fast and Slow Piles. This works well as a starting or closing activity. Students sort math fact cards into fast and slow piles. This visual way of tracking facts highlights which facts come ...

A break-even analysis helps you identify how much your business must sell to recoup costs. Learn how to use it to make smart ...

Abstract: We introduce a reconfigurable, all-analogue optoelec-tronic circuit for non-linear activation in optical neural networks by using the physical-properties of diodes and photodiodes. The ...