Graphing+calculators

Archimy
- You can define a graph by specifying the formula for the coordinates x,y,z.

- The syntax does not differentiate between commands written with lowercase and uppercase letters.

- You can type commands in one line using ";" as a delimiter

- Use the "#" character for comments

Graphing clacualtor

[]
Use this calculator for graphing, for calculating, for sharing, for creating.

gcalc
GCalc is designed to provide a basic, easy-to-use, well-balanced set of graphing functionality for algebra, pre-calculus, calculus and beyond.

inverse-graphing-calculator
The Inverse Graphing Calculator (version beta-1) is like a backwards graphing calculator. Normally, you enter an equation into your calculator and then get a graph of the curve. The way the IGC works is, you type something you'd like as your curve, like 'Hello World' or 'I love you'. The IGC produces an *equation* which has this phrase as its graph!