Here is a plotter to draw the graphs of functions and their Taylor polynomials. Enter the function in the window. The syntax for the input is essentially copied from Maple. The following examples are illustrative:
(x*3)+7
((x-2)*(x+3))/(x*(x-5))
tan(x-x*cos(Pi*x))
sqrt(x^(2)-1)
e^{x*atan(x)}
floor((sin(x))*10)/10
There are a few more options as well: you may
zoom in on a region by
holding the Control key and clicking on the
graph. Conversely, you
may zoom out by holding the Shift key and
clicking. Where you click
becomes the new center of the graph.
Enjoy!