Topic: Can't use tangent line.

Hi,

I find the program very useful, especially for my physics class.

However, I can't seem to get the tangent lines to work? I inserted a point series, but it won't let me insert any tangent lines after. Help is much appreciated.

Thanks!

Re: Can't use tangent line.

You cannot add a tangent to a point series but only to functions. But you can create a trendline from a point series and add a tangent to it.