After 32 years of waiting, mathematicians calculate Dedekind's ninth number, a 42-digit giant that defied logic.

We treat Sheets like a piece of digital paper. We enter data, and when we need to find an answer, we manually scroll. We waste time hunting for rows or applying temporary filters that shuffle our data ...

Notes for MATH700132 (Mathematical Logic) taught by David Evans at Imperial in Spring 2025. They are a work in progress. These notes are primarily based on the content covered in lectures, with some ...

It's cleaner and less cluttered: The double-unary operator is the most concise way to apply a mathematical coercion operation to an array. For example, if you have a complex nested array formula, two ...

For years, architects and design experts have resisted safety changes at Seattle’s Gas Works Park, but after a teenager died there this summer, his parents want it declared a public nuisance. By Anna ...