ALGOL 68

ALGOL 68 is a programming language known for its strong typing and flexible syntax. It is primarily used for scientific and numerical computing.

Hello, world code example:

main: (
  printf($"Hello world!"l$)
)

Popularity: Less than 1% of developers are using or have used this language.*
*According to StackOverflow's 2023 survey.

Repositories on GitHub: 59,333

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