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ttyGraph

Build Status License: GPL v3

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

Initial screen

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

editing

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.