Question

what is alpha and beta

Answer 1

They are the historical measures

Answer 2

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• The original sum sign was a greek letter, as is the sign for “change in,” or delta, the standard sign for an angle, theta, and more.

• We could have changed them to the English alphabet, yes, but that could pose some problems. The biggest example is pi, which is, of course, Greek. If we just used “p,” it could be mistaken as a variable.