Plot your own graphs using JSXGraph

You can plot 3 functions, function 1 (in blue), function 2 (in green) and function 3 (in magenta).

Edit your function and then click the "Plot" button.

f₁(x) =

f₂(x) =

f₃(x) =

Show axes: Show grid:

You can zoom in and out of the graph by holding down the Shift key and using mouse scroll wheel.

You can pan the graph (move it up, down, left, right) by holding the Shift key and dragging the graph with the mouse.

OR (slower), you can use the buttons "− o + ← ↑ ↓ →" at the bottom right of the graph to zoom out and in, and to move the viewport left, up, etc.)

Some graphs to try

The grapher will accept any of the following functions (use the notation shown):

• Straight lines: (like 3x − 2)
• Polynomials: (like x^3 + 3x^2 − 5x + 2)
• Any of the trigonometric functions: sin(x), cos(x/2), tan(2x), csc(3x), sec(x/4), cot(x)
• The inverse trigonometric functions: arcsin(x), arccos(x), arctan(x), arccsc(x), arcsec(x), arccot(x)
• Exponential (e^x) and logarithm (ln(x) for natural log and log(x) for log base 10)
• Absolute value: use "abs" like this: abs(x)
• The hyperbolic functions and their inverses: sinh(x), cosh(x), tanh(x), arcsinh(x), arccosh(x), arctanh(x)
• Sign (1 if the sign is positive, −1 if the sign of the function is negative. For example, try sign(sin(x)))

In fact, you can use most of the javascript math functions, including

• ceiling: ceil(x) and round: round(x)
• square root: sqrt(x)

You can also use any combinations of the above, like "ln(abs(x))".

If your graph doesn't work: Try using brackets! For example, "2 tan x" works, but "tan 2x" does not. You have to put "tan(2x)".

More Information

The above graph is not an image (that is, it's not a .GIF, .JPG or .PNG). It is a javascript-based graph. That's why we can change it so easily and not wait for an image to be created.

For more information, see:

JSXGraph: interactive javascript graphs

Credits to:

• The developers of JSXGraph: A "small team" at the University of Bayreuth, Germany.
• David Lippman, for mathjs.js script, which converts "nice" math to javascript math, behind the scenes.