Can you create a plot within your function?

Question

Patrick 2012-11-4

0
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https://ww2.mathworks.cn/matlabcentral/answers/52691-can-you-create-a-plot-within-your-function

I was wondering if it is possible to create a function which will create plot of some values. Normally, I would write something like:

function[VR,VC]=RC(V,R,C,t)

VR = (V*(exp(-t/(R*C))));

VC = (V*(1-exp(-t/(R*C))));

But would I be able to expand this function to create a graph of VR against VC, so instead of numerical values I would get a graph? Is this actually possible?

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Answer 1

Matt Fig 2012-11-4

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在 MATLAB Online 中打开

Sure it is possible! Functions do not have to return anything:

function[]=RC(V,R,C,t)
VR = (V*(exp(-t/(R*C))));
VC = (V*(1-exp(-t/(R*C))));
plot(VR,VC)

Now from the command line:

RC(5,.01,.02,0:.01:5)

Note that you could have the function return those values, and plot too. Just because a function says in its declaration line that it returns values doesn't mean you have to request them when calling it.