Mesh plot, not able to match size of Z and X

t=0.2;

p=1;

for kx = -3:.1:3

q=1;

for ky = -3:.1:3

energy_ary(p,q)= -2*t*(cos(kx)+cos(ky));

y_ary(p,q)= ky;

q=q+1;

end

x_ary(p)=kx;

p=p+1;

end

x = x_ary ;

y = y_ary ;

[XX,YY] = meshgrid(x,y);

ZZ = energy_ary' ;

contourf(XX,YY,ZZ) ;

Answer 1

[VBBV]

t=0.2;
p=1;
for kx = -3:.1:3
q=1;
for ky = -3:.1:3
energy_ary(p,q)= -2*t*(cos(kx)+cos(ky));
y_ary(q)= ky;
q=q+1;
end
x_ary(p)=kx;
p=p+1;
end
x = x_ary ;
y = y_ary ;
[XX,YY] = meshgrid(x,y);
ZZ = energy_ary' ;
contourf(XX,YY,ZZ) ;

[ZAHID MALIK]

Thank you so much. I got it now

[VBBV]

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