cosh

An interactive math shell.

Features

Numbers

This project supports rational numbers with arbitrary precision. You can use . or , to input decimals.

Variables

You can declare variables with = to reuse values later. The variable Ans always contains the last result.

Operators

These operators are supported:

• x + y: Addition
• x - y: Subtraction
• x * y: Multiplication
• x / y: Division
• x % y: Remainder
• x ^ y: Exponentiation
• (...): Grouping of operators
• |...|: Grouping with absolute value

Functions

These functions are supported:

• abs x: Absolute value
• ceil x: Ceiling
• den x: Denominator
• floor x: Floor
• inv x: Inverse
• neg x: Negation
• num x: Numerator
• sgn x: Sign
• trunc x: Truncation

Installation

Make sure you have GCC, GMP and make installed. On Debian-based systems, you can install them with:

apt install build-essential libgmp-dev

After that, clone the repository, change the directory and build the project:

git clone https://github.com/vaporoxx/cosh
cd cosh
make

The executable is now available as ./cosh and can be moved to a different directory.

Usage

cosh [-d] [-h] [-i INPUT]

Option	Description
-d, --debug	Prints the AST of the input instead of running it
-h, --help	Prints this help message
-i, --input	Runs INPUT instead of being interactive