Topic: Using animation

I am rather new to graph, I am trying to lean how to use the animation feature but when i try to use the example on my own i get an Error 66, Unknown variable, function or constant "a". I get the same unknown variable, etc when i enter f(x)=%(a)x2+%(b)x+%(c) into my graph.
I am using cut and paste from the example Animation the was bundled with the 4.4 beta build 469 and it works fine.
Am I doing something wrong?  If so where may i find the correct syntax/steps to do build a working animation.

Thanks

Re: Using animation

First you must create the constants in the Custom functions/constants dialog.