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Math Applications

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Easy to understand calculus lessons on DVD. Try before you commit. More info:
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From the math blog...

Pythagoras

Pythagoras' religious cult had a strict regime of silence, except when they were singing songs to Apollo. This strange (to our thinking) monastic existence gave us the Pythagoras Theorem (sort of), a better understanding of the physics of music and advances in astronomical thinking....

21st century math skills

A reader asks for advice on 21st century skills and how her students can learn them.
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Where did matrices and determinants come from?

M^-1

Many of our mathematical discoveries are named after European mathematicians, even though they originated in China, India or the Middle East. Gaussian Elimination is one example....