Help me about plot and linspace in matlab ?
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for example I plot the graph y = 2/x by plot command :
x = linspace(1,10,100);
y = 2./x;
plot(x,y,'linewidth',4,'color','r')
It run normally and doesn't have error. But now I plot the graph y = (2/x)^3 by plot:
x = linspace(1,10,100);
y = (2./x)^3;
plot(x,y,'linewidth',4,'color','r')
It appear the error : ??? Error using ==> mpower Inputs must be a scalar and a square matrix. Help me fix it. I think I put the dot wrong. thanks very much.
采纳的回答
Azzi Abdelmalek
2013-12-25
It should be
x = linspace(1,10,100);
y = (2./x).^3;
plot(x,y,'linewidth',4,'color','r')
3 个评论
Nguyen Trong Nhan
2013-12-25
Azzi Abdelmalek
2013-12-25
If x=[1 2 3] , x^3 is not possible, what you need is x.^3, operation element by element
Nguyen Trong Nhan
2013-12-25
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