Get the slope (gradient - derivative) of a curve at a point

hello
does anyone know if it is possible to get the slope (also might be known as gradient, derivative), of a curve at some point?
What i want to do, is draw a line that is vertical to a curve, so i need to have it's slope
thanx

The easiest way to do it would to be to get the point right before the point you're looking at and the point right after it and just find the slope between the two
If you try this method, make sure they are double values. Simple ints will not give you the slope you want.
I made a program once that animated a rocket flying through the air. The curve was found using a parametric equation (x and y in terms of time). To point the rocket, I had to find the dirivitive (a little bit of calc 1). Then, I just made a function that calculated the slope of the curve at any given time (t). It worked great, but it may not be what you're looking for. If you do need to find the dirivitive, post some code or the formula you are using, I'm sure there are people on this board that can help you.

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See if this application does what you want. Note that it installs a new icon at the top of the VIEW icon bar, so that you can call the script easily from the VIEW panel after you've run it once in the SCRIPT panel. There is no way around extracting the new X and Y channels from the desired X range in order to calculate the slope of that X region, but you don't have to use flags, which are designed for interactive use only.
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Here is a link to some video tutorials of the LabVIEW programming environment. They may help you in the development of your code.
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user13642196 wrote:
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