Two years ago, Slate ran a marathon prediction calculator. In the years since, the researchers have updated their work (and the writer became a FiveThirtyEight staff writer). We’ve collaborated with ...

As a spreadsheet software program, Microsoft Excel has many useful features for a small business's productivity. Chief among these is the ability to use formulas to make various calculations with the ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Whether you’re a college student enrolled in a calculus course or a professional accountant with your own ...

Help Slate build a better running calculator by filling out a short survey. In the article below, Christie Aschwanden explains why existing calculators are flawed, and how you can help create a better ...

As any self-respecting geek knows, calculators have long sported all sorts of spiffy hidden tricks. From the .7734 “HELLO” hack that delighted us all in grade school to the more advanced graphic ...