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OldTrout, Going Postal
Mathematics

Commutativity

7th October 2019 OldTrout 2551 Comments

A binary operation is said to commute if the order of the operands does not alter the result. In the real numbers, , the following commutative laws hold : for all for all Although these [more…]

Mathematics

Going Round in Circles

2nd September 2019 OldTrout 5145 Comments

Or : Multiplying by . The beginning of complex numbers is often attributed to Cardano (1501 – 1576).  Complex numbers provide a solution to the equation . They are an extension of the number system [more…]

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