ttyGraph

A graph viewer for character user interface.

Installation

You can download pre-compiled binary file from below, or choose to build from source code.

Linux: ttygraph-linux-latest.tar.gz
macOS: ttygraph-macos-latest.zip

Build from source code

Prerequisites

This program is written in Rust. So you need to install Rust and Cargo by reading rust-lang.org.

Build

Clone this repository to your computer by running:
git clone https://github.com/makutamoto/ttygraph.git

In the cloned directory, run:
cargo run

Usage

The center positioned # is a cursor. You can select a graph by overlapping with this.

• arrow keys : move around the coordinate plane.
• ctrl + X : quit this program.
• ctrl + A : add a new graph.
• ctrl + E : edit a selected graph.
• ctrl + D : delete a selected graph.
• ctrl + C : back to center. (origin)
• ctrl + I/O : Zoom in/out.

Inputting a formula

This program use mathematical formulae to display graphs such as x ^ 2 + y ^ 2 = 100 as shown in the above image.

Formulae must conform to this syntax: [left] = [right]

Supported Operators

• ^ : Power
• * : Multiplication
• / : Division
• % : Modulus
• + : Addition
• - : Subtraction

Supported Functions

• abs(A) : Returns the absolute value of A.
• max(A, B) : Returns the maximum of A and B.
• min(A, B) : Returns the minimum of A and B.
• ln(A) : Calculates ln(A).
• log(A, B): Calculates the logarithm of B with A as the base.
• log2(A) : Calculates the logarithm of A with 2 as the base.
• log10(A) : Calculates the common logarithm of A.
• root(A, B) : Calculates the A-th root of B.
• sqrt(A) : Calculates the square root of A.
• cbrt(A): Calculates the cubic root of A.
• sin(A) : Calculates the sin of A.
• cos(A) : Calculates the cos of A.
• tan(A) : Calculates the tan of A.
• asin(A) : Calculates the asin of A.
• acos(A) : Calculates the acos of A.
• atan(A) : Calculates the atan of A.
• sinh(A) : Calculates the sinh of A.
• cosh(A) : Calculates the cosh of A.
• tanh(A) : Calculates the tanh of A.
• asinh(A) : Calculates the asinh of A.
• acosh(A) : Calculates the acosh of A.
• atanh(A) : Calculates the atanh of A.
• ceil(A) : Calculates the ceil of A.
• floor(A) : Calculates the floor of A.
• round(A) : Rounds A to an integer.

Constants

• PI : The ratio of the circumference of a circle. (3.14...)
• e : Euler's number. (2.71...)

License

ttyGraph is released under GPLv3.0.