TeenyGraph 2.1 - Calculus Update

On this version, the derivation and integration functions are fully implemented. The examples included are:

• integrex.py - Example of the integration function
• derivex.py - Example of the derivation function

Full Changelog: v2.0...v2.1

TeenyGraph v2.0

Suitable for projects requiring open and accessible code. Colours are fully implemented.

Full Changelog: v1.0...v2.0

Teenygraph v1.0

Merge branch 'master' of https://github.com/VP1147/tg