When it’s not necessary to give an exact value, numbers can be rounded. Rounding means making a number simpler but keeping its value close to what it is. When rounding numbers the result is less ...

Excel displays the original number up to 11 digits. When you enter a number that has more than 11 digits, Excel does not display the original value. Instead, it displays the number in the exponential ...

Scientific American presentsMath Dudeby Quick & Dirty Tips. Scientific American and Quick & Dirty Tips are both Macmillan companies. In the last Math Dude episode, we learned the ins and outs of ...

For statistical and mathematical purposes, OpenOffice.org's Calc spreadsheet includes a variety of ways to round off numbers. If you're a programmer, you may also be familiar with some of these ...

I learned something surprising this weekend. A rule I was taught back in elementary school turned out not always to be true. In the process, I discovered something worrisome about myself and how we ...