Not bad, thanks!!!

Why do you think it doesn't work something more human readable like this?

#+begin_src calc
                solve([
                a = 300 m,
                b = 300 m,
                Area = a*b,
                cost = 1 (USD/m^2),
                z = Area*cost

                ], [a, b, Area, cost, z])
#+end_src


Best regards


El 24/10/2022 a las 9:56, Fraga, Eric escribió:
> On Sunday, 23 Oct 2022 at 14:15, Ypo wrote:
>> Is it possible to express in a calc block some basic operations with
>> variables and non-predefined units?
>> Why A*c won't show an arithmetic result, but ~: A c ~?
> I've never managed to get calc blocks define variables.  The equations
> you have typed in are "equations" in the mathematical sense, not
> assignment statements.
>
>> Is it possible to work with the "$" unit?
> $ means something specific in calc (cannot remember what).  I use "USD"
> instead, for instance, and it works fine.
>
> The following single line calc block does do what you want:
>
> #+begin_src calc
>    solve([a = 300 m, b = 300 m, Area = a*b, cost = 1 (USD/m^2), z = Area*cost], [a, b, Area, cost, z])
> #+end_src
>
> #+results:
> : [a = 300 m, b = 300 m, Area = 90000 m^2, cost = USD / m^2, z = 90000 USD]
>