Whether you are generating lottery numbers or sample data for a survey, random numbers are easy to create in Excel. While true randomness is difficult to simulate with software, Excelâ s random ...

In my review of Numbers ’09, I included a tip about entering formulas using the keyboard. In the event that not all of you choose to read the Numbers review from top to bottom, here’s the tip, along ...

MATHEMATICIANS have spent millennia trying to understand prime numbers – those only divisible by themselves and 1 – but so far no one has discovered a formula for all of them. Now mathematician Simon ...