package

github.com/evilenx/calculator-cli

0.2.0 / published Dec 4, 2024 / repository

calculator in crystal and implemented a navigation system inspired by the vi editor

Calculator-cli

A Simple Command Line Calculator

Perform basic arithmetic operations directly from your terminal with this easy-to-use CLI tool.

Features

  • User-Friendly Interface: Effortlessly execute single or multiple calculations sequentially.
  • Arithmetic Operations: Add, subtract, multiply, or divide with ease.

Requirements

  • Operating System: Unix-like OS (tested on macOS and Linux)
  • Crystal Version: 1.0 or higher

Installation

  1. Clone the Repository:

    git clone https://github.com/evilenx/calculator-cli

  2. Navigate to the Repository:

    cd calculator-cli

  3. Build the Program with Crystal:

    crystal build calculator-cli.cr

Usage

Once successfully built, run the binary named calc:

./calc

The application will prompt you to enter values and choose an operation accordingly. Enjoy performing quick calculations right from your terminal!

Examples

Performing a calculation is straightforward:

shell

$ ./calc Enter value 1: 4 Enter operator (+,-,*,/): + Enter value 2: 6 Result: 10.0

Multiple calculations can also be performed sequentially:

shell

$ ./calc Enter value 1: 8 Enter operator (+,-,*,/): * Enter value 2: 3 Result: 24.0 Enter another value (y/n)? y Enter value 1: 9 Enter operator (+,-,*,/): / Enter value 2: 3 Result: 3.0 Enter another value (y/n)? n Goodbye!

Feel free to contribute improvements, bug fixes, or feature requests. Happy calculating!

API