Why did programming languages originally use "&&" instead of "and"? [closed]

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Why do we use "&&" instead of "and" in so many languages? I get that it has sort of become the standard for programmers, but how did that originally happen?

Answer 1

It is up to the language designer to make these decisions, but one reason is that there is two types of and - regular and bitwise (&& vs &)

It's harder to succinctly express the bitwise version using English words

Answer 2

Why did programming languages originally use “&&” instead of “and”?

You have it back to front. Originally they used and: Fortran, Cobol, Algol, Pascal, PL/1, all the varieties of Basic, ...

It was the BCPL series of languages (B, C, C++) that introduced & and && as far as I know, and Java and C# followed suit. You would have to ask the BCPL designers why, if they are still around.

APL used the set-theoretic symbols ^ and its inversion.