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Latest articles

Is a 1x1 matrix a scalar?

Is a 1x1 matrix really a scalar?
A 1x1 matrix is often regarded as a scalar quantity, but is that correct? This article explores a reader's question... more »

Wallis, pi and quantum theory

Wallis Product - new proof by quantum mechanics
A quite remarkable new proof of the 400 year-old Wallis Product approximation for π has recently been published. It arises from a study of the quantum mechanics of a hydrogen atom... more »

Is cube root the same as raising to power 1/3?

Graph of cube root
Is there a difference between cube root and raising a number to the power 1/3? Maybe there is!.. more »

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