Simply type the expression or formula to graph, and it will display a plot of the curve.
hover over variable
|shows curve family|
You can visualise equations of the form:
| y = f(x) || plot y as a simple function of x
| x = f(t); y = f(t) || parametric function (e.g. x and y vary over time) - specify the bounds of parameter t
| r = f(t) || polar function, radius as a function of angle - specify range of angle t
| f(x,y) = 0 || implicit function - plots contours of where f = 0
Functions can have free parameters - use letters or words, and they will appear in the "variables" panel
- click on the value of a variable, and you can drag the slider around to show how the parameter changes the shape of the curve
- right-click on a variable and choose "animate" to visualise a range of values of the parameter.
Multiple functions can be plotted using "equations... add/remove"
Sets of equations can be stored or loaded from the server using "equations... save/load"
Data can be fitted to functions with arbitrary parameters (least squares)
- type or paste a list of x and y coordinates into the "data" tab.
Should accept data from any application as long as X and Y are interleaved.
- use "data... draw points" to place data points by clicking on the graph -
these points can also be copied out to other applications
Functions can be selected from a library of interesting formulae - choose a category.