Version 2.11.1 of package Constants has just been released in GNU ELPA. You can now find it in M-x list-packages RET.
Constants describes itself as: ============================================== Enter definition of constants into source code ============================================== More at https://elpa.gnu.org/packages/constants.html ## Summary: Commentary: When I write small programs to calculate something, I often need the values of some physical constants and units. I could of course always link a big module with all those definitions. But often I want the program to run stand-alone, so I prefer to define variables for these constants directly. This package provides the command `constants-insert'. It prompts for one or more variable names and inserts definition statements for numerical constants into source code. It does this in the appropriate syntax for many different programming languages. There are also the commands `constants-get' and `constants-replace' which just display the value of a constant in the echo area, or replace the name of a constant in a buffer with its value. ## Recent NEWS: [Not provided 🙁]
