RCCP - Rust Calculator for Cool People

Overview

RCCP is a simple command-line calculator written in Rust as an alternative to more conventional GUI calculators. It supports basic arithmetic calculation, and respects the order of operation (BIDMAS/BODMAS/PEMDAS).

Features

• Basic arithmetic operations: addition (+), subtraction (-), multiplication (*), and division (/).
• Exponents: use the ^ symbol to perform exponentiation (e.g., 2^3 equals 8).
• Factorial: use the ! symbol to calculate the factorial of a number (e.g., 5! equals 120).
• Sqare root: use sqrt to calculete the sqare root of a number (e.g., sqrt(9))
• Trigonometry: use sin, cos, and tan in your equations (e.g., sin(16))
• Logorithm: use log to calculate the logorithmic of a number (e.g., log(100))
• Order of operations: operations are performed in the correct order according to BODMAS/BIDMAS/PEDMAS rules.
• Parentheses: parentheses can be used to change the order of operations.
• Simple Command Line Interface

Installation

To install RCCP, you can use the rust package manager: cargo.

$ curl https://sh.rustup.rs -sSf | sh
$ cargo install rccp
$ rccp

Or you can build it from source, using the github repository.

$ git clone https://github.com/d3vboi/rccp.git
$ cd rccp
$ curl https://sh.rustup.rs -sSf | sh
$ cargo run -q

Keep in mind, if you use this method you will need to be in the RCCP directory to be able to run the cargo command.

Usage

To use RCCP, simply run the program, then enter an expression at the prompt:

$ rccp
> 2 + 3 * 4
14
> exit

As we can see in this example, RCCP correctly performs the multiplication before the addition, resulting in the 14 instead of 20. You do not need to add spaces in between characters. > 2+3*4 is also a valid expression.

License

This project is licensed under the MIT License.

Todo

• Gracefully exit when using ctrl+c
• Support for arrow keys (e.g., expression history)
• Error handling
• Variable support + constant support (e.g., pi and e)
• Minor bug fixes