LaTeX forum ⇒ Graphics, Figures & TablesListplot plotstyle=curve

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aquamarijn
Posts: 8
Joined: Wed Aug 15, 2012 11:37 pm

Listplot plotstyle=curve

Postby aquamarijn » Tue Jul 19, 2016 12:44 pm

PSTricks listplot draws a smooth curve through the points in a given list when I use the option plotstyle=curve. I have two questions.
1. How is the curve between two adjacent points determined mathematically? It doesn't seem to be a cubic spline (as would result from plotstyle=cspline). If it's a bezier curve, how is it determined (e.g. which intermediate control points)?
2. Is it possible to show or calculate the coordinates of a specific point in between two adjacent points from the list? Example: suppose the list is 0 0 3 1 5 7, how do I get the y-value of the listplot-curve at x=2?

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