Australian slang

The Bridgestone World Solar Challenge will be held next October. Here is a taste of Australian slang for any Americans participating:

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Timeline of mathematical notation

Following up on my earlier timelines about zero and about Hindu-Arabic numerals, here is a timeline for some other mathematical notation, starting with the square root symbol (click to zoom).

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0123456789 in Europe: an infographic

Following up on my earlier post about 0 and 1 in Greek mathematics and my timeline of zero in Europe, here is a timeline for the use of Hindu-Arabic numerals in Europe up to René Descartes (click to zoom).

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