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How can we be sure that Pythagoras's theorem is really true? Why is the 'angle in a semicircle' always 90 degrees? And how can tangents help determ...

What makes mathematics so special? Whether you have anxious memories of the subject from school, or solve quadratic equations for fun, David Aches...

Calculus is the key to much of modern science and engineering. It is the mathematical method for the analysis of things that change, and since in t...

This excellent book, written by the established author David Acheson, makes mathematics accessible to everyone. Providing an entertaining and witty...