Re: Kludge for handling REPL arithmetic expressions

[Chris Elvidge]

On 03/08/2021 04:32 am, Eric Pruitt wrote:
> I have a command setup in Bash that allows me to use "=" to do
> arithmetic in an interactive session:
>
>      ~$ = 1/42 * 9
>      0.2142857142857143 (3/14)
>      ~$ = log(2048, 2)
>      11
>      ~$ = 1/3 + 7
>      7.333333333333333 (22/3)
>      ~$ = x * 3
>      22

I was intrigued by this. So tried:
=() { echo "scale=5; $@" | bc; }
as an experiment.
Seems to work for simple calculations.

A couple of questions, though.
1) How do you 'export -f ='? Or is it impossible?
2) How do you type in '= log(2048,2)' without getting a syntax error?


--
Chris Elvidge
England