README.md

Function_Plotter

Program for plotting 2D & 3D functions from direct input, written in Python 3 for Linux terminal. Uses matplotlib and numpy libraries.

Instructions:

How to setup:

In terminal/cmd prompt, clone the repository into you desired location:

foo@bar:~$ git clone https://github.com/Shellywell123/Function_Plotter.git

How to update:

Navigate to program directory:

foo@bar:~$ cd Function_Plotter/

In terminal/cmd prompt, pull the latest version:

foo@bar:~$ git pull

How to run:

For 2D functions, in terminal/cmd prompt, execute 'run2d.py' with python 3:

foo@bar:~$ python3 run2d.py

For 3D functions, in terminal/cmd prompt, execute 'run3d.py' with python 3:

foo@bar:~$ python3 run3d.py

Features

• Supports 2D and 3D functions

• Supports many mathematical functions:

  • sin, cos, tan, arcsin, arccos, arctan
  • sinh, cosh, tanh, arcsinh, arccosh, arctanh
  • log, log10_
  • abs
  • sqrt
  • x^n, x**n

• Supports many mathematical constants:

  • pi
  • e
  • i

• Supports multiple input forms:

  • y = f(x,z), y = f(x), y = f(z)
  • x = f(y,z), x = f(y), x = f(z)
  • z = f(x,y), z = f(x), z = f(y)

• User inputted funtion limits

  • e.g y = 4x + 1 #0<x<4

• Can input multiple functions at a time

  • e.g y = 4x + 1, x = -y + 7

• Library of functions that can be added to and called with direct aliases:

  • Library's current contents:
    • Letters: B, C, E, F, H, L, N, T, Z
    • Logos: batman, heart
  • See examples below to see how they can be called

• Coming Soon

  • Parametric equations
  • Planes and vectors
  • Polar, Cylindrical, Spherical and Toroidal
  • Complete library of letters and numbers plotted in 2d-3d, allowing words and simple sentences to be graphed.

Fixes to be made

• Some features break after one false input

Examples

1) Simple Triginometry Example

In terminal/cmd prompt:

foo@bar:~$ python3 run3d.py
input your function:
>> z = x*sin(y)**2

output:

2) Batman Function (alias funtions)

In terminal/cmd prompt:

foo@bar:~$ python3 run3d.py
input your function:
>> batman

output:

3) Multiple Functions with set ranges in 2D (Box)

In terminal/cmd prompt:

foo@bar:~$ python3 run2d.py
input your function:
>> y=1 #-1<x<1, y=-1 #-1<x<1, x=1 #-1<y<1, x=-1 #-1<y<1

4) Multiple Functions in 3D

In terminal/cmd prompt:

foo@bar:~$ python3 run3d.py
input your function:
>> y=z,y=-z,y=x,y=-x,z=x,z=-x

4) Complex Example

In terminal/cmd prompt:

foo@bar:~$ python3 run2d.py
input your function:
>> y=x, y=(i**2)*x

output: