peso calculator

A simple expression based script just like an enhanced calculator.

Working in progress, write in javascript, support node.js and broswer(even IE8 and old Edge!)

It will look like:

f(x)=x^2+2
f(3)
A=1
B=A+2
vec[1,2,3]*mat[[1,3],[3,4],[5,7]]+vec[4,5]*3
6*0.5
13%2+7//4
arctan(sqrt(3)/2)

run the calculator in node.js

1. install peggy

   npm i -g peggy

2. compile lexi file

   peggy lexi/main.pegjs

3. run main.js

   node main.js

run the calculator in browser

Not yet.