Excel tip: Define cell names to cut errors and speed up your formulas

Using the example in our spreadsheet or a similar spreadsheet, highlight all the revenue numbers in the sheet and then in the ...

Learn What GROUPBY Can Really Do in Excel : From Smart Sorting to Percent of Totals

Learn how GROUPBY passes both subset and full arrays into LAMBDA in Excel, letting you compute percent shares fast and explain results clearly.

Master Sharpe Ratio Calculation in Excel for Better Investing

Learn to calculate the Sharpe Ratio in Excel for insightful investment analysis. Our guide will help you assess risk versus ...
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Chinese students excel at math, so why aren't there more mathematicians?

Shing-Tung Yau, Member of the American Academy of Sciences, Fellow of the American Academy of Arts and Sciences, Foreign academician of the Chinese Academy of Sciences, Foreign academician of the ...
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Where Art Meets Math

In the late 1960s and early 1970s, the American cartoonist Crockett Johnson created a series of paintings on mathematical subjects. They’re based on theorems, laws, and mathematical figures, but ...