Cloud Graph

Your browser doesn't support canvas, please upgrade to the latest version.
Ready | () |

Graph Settings

Grid Settings


Grid Lines


View Settings



Cloud Graph Help

Cloud Graph is an online graphing calculator for drawing function, polar and parametric graphs.

Entering Expressions

Expresions are entered using standard calculator algebraic notation.

  • Available operators: +, -, *, /, ^
  • Available constants: pi, e
  • Available functions: sin, cos, tan, asin, acos, atan, pow, sqrt, log, log10, exp, abs, rnd, ceil, floor, random
  • Implicit multiplication supported: e.g. 2pi => 2 * pi

Defining Graphs

Enter the expression for the graph using the appropriate free variable. Click the keypad button next to the field to show a keypad with all available built-in functions.

  • Function: define as y(x)
  • Polar: define as r(t)
  • Parametric: define using x(t) and y(t)

You can change the color and width of the line used to draw the graph. You may also specify a range for the graph.

  • From: The start value of the free variable (x or t)
  • To: The end value of the free variable (x or t)
  • Step: Amount to add when computing each point

If the range is not specified for a function graph it is unbound and draws over the entire graphing area. If not specified for polar or parametric graphs it uses the default range for t of: [-pi to pi] with a step of pi/64.

Note: You can enter mathematical expressions in the range fields. (E.g. pi/2)

Navigating Graphs

Use the buttons on the navigation bars next to the graph to pan the graph view.

  • Pan left/right/up/down - Pans the view the amount of one grid line in the specified direction
  • Page left/right/up/down - Pans the view the amount of one page width/height in the specified direction

The zoom out button zooms out 2x from the center of the graph. The zoom in button depends on the context.

  • If an area of the graph is selected it zooms in on that area
  • If a point is selected it zooms in 2x on that point
  • Otherwise it zooms in 2x on the center of the graph
  • You may also double-click to quickly zoom in 2x on a point

Use the previous and next buttons to go back and forth between views, like a web browser.

To define a custom grid click the Grid button and set the range. Note: You can enter mathematical expressions in these fields. (E.g. pi/2)

About Cloud Graph

Cloud Graph version x.xx

Copyright © 2014 JM Gustafson, WorldTree Software

Contact me with any bugs, questions or suggestions.

Created with HTML5 and TypeScript

Open File