Has anybody made a great calculator program?

Question

It should be capable of performing more than one operation at a time.
It should be able to process more than 2 operands.
It should follow BODMAS
Operators +*-/ ()

I've been thinking about making one. But if anybody has already made one of these, it would be my pleasure to check it out. TIA :)

Answer 1

Yes, mine,
https://code.sololearn.com/cRm3DeiHD24Q/?ref=app

Answer 2

One I liked was "Programming Languages Concepts and Constructs" by Ravi Sethi.

Answer 3

And for compiler theory, the one known as the "Dragon book" which is "Compilers : Principles Techniques and Tools" by the same author.

Answer 4

Thanks. I used a lexical/parser approach that is similar to what is used to compile code. I have a longer version on my PC that evaluates popular math functions like sin(), cos() etc. and floating point numbers - but it's a bit too big for SL compiler.

Answer 5

Books from my CS classes, mainly computer language/compiler theory.

Answer 6

@Helioform. Nicely done mate. Although tbh I have no idea what the heck that code is. I'll run it on desktop anyway. I need to learn about Tokens and enums i guess.

I was thinking about extracting the characters and cross checking them using functions for each operation. Figured I'd need many lines of code for that.

Answer 7

You learnt these techniques through books? Or lectures?

Answer 8

I'd be grateful if you could suggest a few, except the one by Stroustrup :)

Answer 9

I'll look into it. Thanks