For years, a French mathematician searched for a proof that a gigantic number is prime. His method is still used 150 years ...

Most of us have little trouble working out how many milliliters are in 2.4 liters of water (it's 2,400). But the same can't be said when we're asked how many minutes are in 2.4 hours (it's 144).

Helping students to develop math fluency takes more than just flash cards. It requires teaching them how to think about ...

The Vim command line text editor includes a powerful copy and paste function. Instead of using your mouse to highlight a certain number of lines and copy them, you use a keyboard shortcut to indicate ...

The samples failed - What number do you want me try again and do tutorials (part 3) Before recording a video tutorial, I had to try that pattern several times until it was satisfied. Apart from ...

Abstract: With the development of economy, the market demand is more and more diverse and individual, and the multi-product and small-batch production mode has become a new development direction. The ...