Tables, named ranges, line breaks, modern functions, and helper columns make Excel formulas easier to read, audit, and fix.

The tilde isn't the only sign you need to understand to truly get your head around Excel's inner workings. For example, the at (@) sign returns a single row value instead of spilling an array, the ...

A simple formula is given for generating Chern characters by repeated exterior differentiation for n-dimensional differentiable manifolds having a general linear connection.