can someone provide me alternative code for this? It shows U and v must be of same size. I am new to Matlab

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sudhanshu gupta
sudhanshu gupta 2021-12-27
回答： Sargondjani 2021-12-28
syms x y z
F=input('enter fuunction');
P=inline(vectorize(F(1)),'x','y','z');
Q=inline(vectorize(F(2)),'x','y','z');
R=inline(vectorize(F(3)),'x','y','z');
x=linspace(-1,1,5);y=x;
z=x;
[X,Y,Z]=meshgrid(x,y,z);
quiver3(X,Y,Z,P(X,Y,Z),Q(X,Y,Z),R(X,Y,Z),1.5)
axis on
xlabel('x')
ylabel('y')
zlabel('z')

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回答（1 个）

Sargondjani
Sargondjani 2021-12-28
I think quiver and quiver3 only work with numerical data. So you to get numercial values for P, Q, R. I think you can use the function double for this.

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