How is AI different from a neural net? How can a machine learn? What is AGI? And will DeepSeek really change the game? Read ...

Excel and Google Sheets have three functions to calculate the internal rate of return: IRR, XIRR, and MIRR. Learn how these functions can calculate investment returns.

If Excel filter is not working after certain row, for merged cells, on large files or on protected sheet, then see this post.

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