I've just discovered google charts and this looks like a great solution to a project I'm working on for my students.
After hours looking over the documentation (and no luck yet) I'll explain what I'm trying to accomplish... Graph a simple algebraic function like x^2. It should appear on a grid with the x ranging from -10 to 10 as well as the y ranging from -10 to 10. Somewhat like this: <https://lh5.googleusercontent.com/-hYpL0Fs0io0/T3uQA46GzeI/AAAAAAAAAVo/Trc_URu8obY/s1600/parabola.png> It appears that the scale must be at the outer edges, and that is OK, but is there a way to graph two lines, one horizontal and one vertical, that go through the origin to highlight the axes? Once I have a working graph, I can change the function string within my php script to generate different graphs. Any help anyone can give would be greatly appreciated! Here's what I have so far... http://chart.apis.google.com/chart?chxr=0,-10,10|1,-10,10&chxs=0,0000FF,12,1,lt,676767|1,0000FF,12,1,lt,676767&chxt=x,y&chs=400x400&cht=lxy&chds=0,100,-10,100&chd=t:-1|-1|-1|-1&chg=5,5,0,0&chls=1|1&chts=FF0000,12&chfd=1,x,-10,10,.01,x*x Mitch -- You received this message because you are subscribed to the Google Groups "Google Chart API" group. To view this discussion on the web visit https://groups.google.com/d/msg/google-chart-api/-/S0Lwu-wz2_0J. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-chart-api?hl=en.
