Here is what Zegrapher v3.0 can offer you:
  • Visualize up to six functions simultaneously. All the usual functions can be called: they're all written on a virtual keyboard.
    On a given function, others can be called, so it is possible to associate or compose functions.
  • Numerical sequence plotting, they can be defined by a recurrent relation or explicitly.
  • Parametric equation plotting. The curves can be animated, with adjustable smoothness (frame rate) and speed (ms per step).
  • Experimental data plot and polynomial fit (regression). Data can be imported/exported from a CSV file.
  • Parametric plot for functions, sequences and parametric equations: the parameter symbol to use is "k".
  • Plot tangents: they can be moved and resized simply with the mouse.
  • Plot derivatives and antiderviatives.
  • Print the graph, with these options :
    • Choose the size and the position of the graph on the sheet.
    • Print in color or gray-scale.
    • Export on a PDF file.
  • Export to all common image formats (png, jpeg, tiff, gif...).
  • Display a table of values with different options.
  • Navigate on the graph :
    • Select a curve to display the coordinates of its points.
    • Zoom/unzoom on each axis separately or together, with the mouse on a point, or on a rectangular region.
    • Move the graph.
  • Customize the presentation :
    • Change all the colors: axes, background, functions...
    • Adjust the plotting precision. Note that it will also affect rendering speed.
    • Show/hide a grid.
    • Activate/deactivate curves' smoothing.
    • Plot the graph on an orthonormal basis.