https://github.com/leo-210/polish-calculator

A reverse polish notation calculator made with gleam !
https://github.com/leo-210/polish-calculator

Last synced: about 2 months ago
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A reverse polish notation calculator made with gleam !

• Host: GitHub
• URL: https://github.com/leo-210/polish-calculator
• Owner: leo-210
• License: cc0-1.0
• Created: 2024-08-09T12:46:15.000Z (5 months ago)
• Default Branch: main
• Last Pushed: 2024-08-09T13:06:12.000Z (5 months ago)
• Last Synced: 2024-10-15T06:10:02.737Z (3 months ago)
• Language: Gleam
• Size: 8.79 KB
• Stars: 1
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# Reverse polish notation calculator

A [reverse polish notation](https://en.wikipedia.org/wiki/Reverse_Polish_notation)

calculator made with gleam !

The program pushes the last result to the stack, so you can easily use it, while 

still enabling you to do different calculations. For example :

```

> 3 4 +

7

> 3 +

10

> 3 4 +

7

```

The second input line is actually equivalent to `7 3 +`. The third one is equivalent

to `10 3 4 +`, and in these cases the program will ignore the first number instead 

of returning an error.

The 4 principal operation are supported (i.e. addition, substraction, multiplication 

and division), and only positive integers are valid (the program can return negative 

integer though). All other characters are treated as whitespace.

So this is valid syntax :

```

> h3ll0 w0rld++

3

```

## Running the program

You have to [install gleam](https://gleam.run/getting-started/installing/), 

clone the project, then run :

```

gleam run

```