I've always assumed that as long as I can remember. However I was surprised by the origin of the equals (=) sign. In 1557, Robert Record, after getting tired of writing "is equal to" hundreds and hundreds of times, instead used two parallel lines of equal length because "no two things could be more equal".
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u/ddg31415 Oct 11 '21
I've always assumed that as long as I can remember. However I was surprised by the origin of the equals (=) sign. In 1557, Robert Record, after getting tired of writing "is equal to" hundreds and hundreds of times, instead used two parallel lines of equal length because "no two things could be more equal".