How Warren Buffett's 90/10 Rule Simplifies Investing for Average Investors

Warren Buffett's 90/10 investment strategy for average investors is simple to implement but requires discipline and patience ...

How to digitally sign Excel Macros

When you digitally sign an Excel macro using Visual Basic Editor, you add a unique, encrypted signature to your VBA project.

The Advanced Google Sheets Features You Should Be Using but Probably Aren’t

This Google Sheets Advanced Tutorial explains IF, VLOOKUP, INDEX MATCH, and pivot tables, plus macros and Apps Script for ...

8 Excel Symbols That Are Making Complex Formulas Obsolete

Stop Excel errors by using these 8 key symbols, like ' to keep leading zeros and ~ to search for literal * or ? characters in data.
How-To Geek on MSN

How to use structured references in Microsoft Excel

Structured references use table columns instead of cell coordinates, making formulas easier to read, update, and trust.
IEEE

Multiple Shear-Shift Absolute Calibration of Reference Surface for White-Light Interferometers

Abstract: With advantages for testing midfrequency form error and strong curved surfaces, the white-light interferometers (WLIs) have been widely used for testing ...
IEEE

Extension of the Hill Cipher via Rhotrices and Heart-Oriented Multiplication with MS Excel Implementations for R3 and R5 Cases

Abstract: This paper presents a variant of the Hill cipher that replaces ordinary matrix operations with rhotrix algebra using heart-oriented multiplication. We review basic properties of rhotrices, ...