Well, thanks to a mathematical trick, previously explained on Forbes' website, now you can. The trick, dubbed Zeller's formula, gives you the day of the week for any date by using this method ...

Math and conversions aren't everyone's strong suit, and that's all right. With this iOS 18 trick, you don't have ... equations that use more complex formulas, like the trigonometric functions ...

The Trick: Assuming an approximately 9% sales ... The rule of 72 comes from manipulating the basic mathematical formula for calculating compound interest. The exact number you need to divide ...

In a video on social media, a mathematician has outlined an ingenious method for saving a four-figure sum each year.