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Google Colab is a free online tool from Google that lets you write and run Python code directly in your browser.

NPR's Ailsa Chang speaks to mathematician Eugenia Cheng about the Pascaline -- a 17th-century invention credited as the first mechanical calculator.

The hidden gift of math is the development of problem solving, critical thinking and perseverance, all of which are seriously lacking in today's graduates,' writes an L.A. Times reader.