Excel gives the answer 10. If you have a mathematical background, you’ll know why Excel gives a different answer to such a simple calculation — and why, technically, Excel is right. If you don’t have ...

Wrestling with Word’s equation editor can be frustrating, but it doesn’t have to be. A few simple tricks can make typing and formatting math equations a breeze—no more clunky menus or endless ...

All straight line graphs have an equation that can be written in the form 𝑦 equals 𝑚𝑥 add 𝑐, where 𝑚, the coefficient of the 𝑥 term, is the gradient or slope of the line. The constant, 𝑐, is ...