Just in case you find this package interesting. Except some problems
with units conversion, it's nice:
https://github.com/sulami/literate-calc-mode.el
This is a literate calc file.
Lines without "=" are ignored.
All results starting with "=>" are an overlay generated by
literate-calc-mode. That means they are displayed in Emacs, but not
actually in the buffer/file contents.
We can calculate a value like so:
= 2 + 2 => 4
If there is any string on the left hand side, it becomes a bound
variable.
Pi = 3.14159 => Pi: 3.14159
We can use this variable below the definiton.
Tau = Pi * 2 => Tau: 6.28318
Results are calculated using Emacs' own calc, so you can use formulas
as well.
= round(Pi, 2) => 3.14
Later bindings shadow earlier ones:
Pi = 3 => Pi: 3
= Pi => 3
Variable names can have spaces as well:
Monthly Expenses = 500 => Monthly Expenses: 500
Monthly Income = 1000 => Monthly Income: 1000
Annual Savings = 12 * (Monthly Income - Monthly Expenses) => Annual Savings:
6000
All values are recalculated on every update in a spreadsheet-like
fashion.
Calc also has a lot of advanced features, like arrays:
Numbers = [1 2 3] => Numbers: [1, 2, 3]
= 3 Numbers => [3, 6, 9]
"Fraga, Eric"<e.fr...@ucl.ac.uk> writes:
>/> I guess that the main problem is that calc is tightly integrated with/
>/> interactive commands. Maybe ob-calc could be extended to somehow/
>/> indicate the commands to be executed in addition to inputting stack/
>/> entries./
>/>/
>/> Not sure if there is much interest in such feature though./
>
>/Thinking out loud, what would be better, but I have no idea how feasible/
>/it would be, would be to have ob-calc make use of the embedded calc/
>/functionality and syntax, so that you could write something like this:/
>
>/#+begin_src calc/
>/a := 300 m/
>/b := 2 a =>/
>/#+end_src/
>
>/which would output the result of any line with => on it./
I am CCing Tom Gillespie, the maintainer of ob-calc. Maybe he has
something to say.
