Axis Controls
In most browsers the mouse scrollwheel can he used to zoom in and out of the graph, clicking and dragging on the graph will move the axis and dragging the bottom right will resize the graph image.

Alternatively, and for more precision, the Axis Options from the Options menu can be used.

Currently Accepted Syntax

Multiplication	*
Divison	/
Subtraction	-
Addition	+
Natural Log	ln(x)
Logs base 10	log(x)
Logs base q	log(x,q)
Powers, Exponentials	x^y
Trigonometry	cos, sin, tan
Inverse Trig	arccos, arcsin, arctan
Hyperbolic Trig	cosh, sinh, tanh
Inverse Hyperbolic is not supported - blame PHP

Simplifications
2*x can be written as 2x.
cos(x) can be written as cosx
2x^2 will be taken as 2*x*x

Types of Line

Functions	Will plot y=f(x), with f(x) given in terms of x only.
Parametrics	Will plot a line y=f(q1), x=f(q2), with both functions given in terms of q.
Gradients	Will plot the gradient function of the given function of x, in effect plotting dy/dx.
Polar Equations	Using the polar co-ordinate system, this can plot a graph of pheta=f(r), or r=f(pheta). Where r is the distance from the pole (origin), and theta is the angle anti-clockwise from the positive x axis.

The Graph Plotter Suite

© Copyright Luke Wallin 2007-2008
Source released under GPL

GUI version 2.2.2
Plotter version 2.1.3
Syntax Converter version 1.5.1
Anti Aliasing Function

Keyboard Shortcuts
The underlined letter in any of the menus is the key which can be pressed to open that menu or window. Eg pressing 'O' then 'X' opens the Axis Options window.

Escape will close all currently open windows.

Clicking on the graph whilst holding 'C' will centre it to that point.

Pressing 'F' creates a new function, 'P' a new parametric, and 'G' a new gradient.

Pressing 'R' resets the axis to the centre and with a zoom of ±4.