Optical Illusion Puzzles have intrigued and baffled us for centuries. These mesmerising images challenge our perception, showcasing how our brains process visual information in remarkable ways. These ...

Have you ever opened a spreadsheet and felt overwhelmed by a sea of unformatted numbers, struggling to make sense of the data? Whether it’s a financial report, survey results, or a project timeline, ...

What feature or improvement do you think would benefit InvoiceShelf? I would like to be able to provide a starting sequence number. In a particular scenario that I have, InvoiceShelf is generating ...

Excel's SEQUENCE function lets you create a list of numbers in a sequence in an instant. It also allows you to define the shape, number of values, and steps between each number in the sequence, and ...

Have you ever found yourself endlessly dragging that little Excel fill handle, trying to populate rows or columns with numbers, dates, or formulas? It’s tedious, time-consuming, and let’s be ...

Whenever you look at a clock, do you always see the same time? It might be 11:11 or 3:33. Maybe repeating numbers have made their way into other aspects of your life, such as a receipt that totaled ...

Katie has a PhD in maths, specializing in the intersection of dynamical systems and number theory. She reports on topics from maths and history to society and animals. Katie has a PhD in maths, ...

If you want to learn how to autofill in Excel, you’ve landed on the right page. When you're filling out spreadsheets, it can take a lot of time for you to fill data in the cells, especially when ...

In the early 1970s mathematician Donald Knuth spent a sabbatical with his wife in Norway. The time was meant to be spent relaxing. Yet one night he woke up his partner in a state of agitation. He ...