including basic math. Here's how to use Excel as a calculator to perform basic arithmetic operations such as addition, ...

Q. I have prepared projections for a proposed project, and I want to calculate the internal rate of return. Instead of using Excel’s IRR function, should I use simple math formulas so others can ...

but blindly performing arithmetic calculations is surely their forte. Or is it? The failure of Google's online calculator and Excel's apparent inability to give correct answers to simple ...