Thanks

Shri

]]>e^(sin(x)) is quite nice to scroll back and forth on

]]>Bob

]]>e^(sin(x)) makes nice waves.

]]>That's great and worked well for all I tried.

There was one odd thing that happened. I suspect it's my laptop as I've had the odd thing happen with graphics before. But I'll describe what happened anyway, in case you can shed any light.

If I slide the zoom control fully left, as I start to slide back towards the centre, the graphs (everything inside the function and the slope borders) vanish. And stays that way unless I press the reset. This doesn't happen for a slide right.

Bob

]]>The *Derivative Plotter* is neat. Excellent work!

It works well even getting the correct plot for this tough one.

You could have calculated those points using a formula instead of the slope between two points. But if the speed is acceptable that way, why change?

]]>It plots the "derivative" by simply calculating successive points and working out the slope. I can't think of a simple phrase to say that ... "calculated slope"?

But a really cool feature is at the bottom where you get to plot a function in green to (hopefully) coincide with the "calculated slope".

Comments and Suggestions pretty please!

]]>