How to plot a curve with 3 points?

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Vanessa Chimedza
Vanessa Chimedza 2022-1-28
评论： Vanessa Chimedza 2022-1-29
x= [1.2 1.5 1.9];
y=[5.5e15 9.9e15 7.8e15];
I want to plot a graph like this using the 3 points .How can I do it?
  2 个评论
Image Analyst
Image Analyst 2022-1-28
Three points are enough to define a quadratic, but not a Rayleigh-like curve like you're showing. You need more, or else a formula.

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Voss
Voss 2022-1-28
Ran in:
You can plot those three points and connect them with line segments using the plot() function:
x= [1.2 1.5 1.9];
y=[5.5e15 9.9e15 7.8e15];
plot(x,y)
It's not clear how the plot you want is related to those points. Maybe by fitting a curve?

更多回答（1 个）

Matt J
Matt J 2022-1-28
编辑：Matt J 2022-1-28
plot(x,y)
will always plot a curve. Whether you have enough points for the curve to have the intended shape is another question.

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