Why doesn't quiver work for this function?
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Ryan
le 23 Juin 2014
Réponse apportée : Star Strider
le 23 Juin 2014
I have been trying everything and nothing is working. The only way I can get any kind of vector plot is if I delete the ratio at the end of the equation which I don't want to do. Please help.
[X Y]=meshgrid(0:.2:2,0:.2:2);
dY = .75*Y-.005*Y.^2-((1.5*Y.^3)/(1.25+Y.^3));
dX = ones(size(dY));
quiver(X,Y,dX,dY)
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Star Strider
le 23 Juin 2014
‘The only way I can get any kind of vector plot is if I delete the ratio at the end of the equation which I don't want to do.’
The only part of the equation you didn’t vectorise is the division. This statement works for me:
dY = .75*Y-.005*Y.^2-((1.5*Y.^3)./(1.25+Y.^3));
% ADD ^ ‘.’ HERE
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SRI
le 23 Juin 2014
Hi Ryan There is nothing problem in your coding because iam able to receive plot from your code
clc;
close all;
warning off
[X Y]=meshgrid(0:.2:2,0:.2:2);
dY = .75*Y-.005*Y.^2-((1.5*Y.^3)/(1.25+Y.^3));
dX = ones(size(dY));
quiver(X,Y,dX,dY)
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SRI
le 23 Juin 2014
Hi Ryan I am working in windows Os having the same edition, the code which you have displayed above will result the dotted matrix only, better you keep trying by placing the break points in your code
so that you can understand the meaning of the code
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