Issue with creating a plot from two for loops

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Umar Naseef
Umar Naseef 2021-1-2
评论： Umar Naseef 2021-1-2
Hi,
I have an issue with creating a plot in the same figure from two for loops.
This is my code which is quite simple but I am still unable to find the issue.
a=1.63279*10^-6;
b=264.9889;
for T=373:10:1273;
Mu = (a*T.^0.5)/(1+b./T)
plot(T, Mu)
end
n = 0.666;
T0 = 273;
Mu0 = 1.375*10^-5;
for T=373:10:1273;
MuT = Mu0.*(T./T0).^n
end
  1 个评论
Umar Naseef
Umar Naseef 2021-1-2
I should be creating 2 different graphs in the same plot from the same T values and the Mu and MuT values.

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采纳的回答

Star Strider
Star Strider 2021-1-2
Neither of the loops are necessary. Use element-wise operations (here, exponentiation (.^ instead of ^) and division (./ instead of /)) to create the plots:
a=1.63279*10^-6;
b=264.9889;
T=373:10:1273;
Mu = (a*T.^0.5)./(1+b./T);
figure
plot(T, Mu)
grid
n = 0.666;
T0 = 273;
Mu0 = 1.375*10^-5;
T=373:10:1273;
MuT = Mu0.*(T./T0).^n;
figure
plot(T, MuT)
grid
See the documentation on Array vs. Matrix Operations for a full explanation.
.

更多回答（1 个）

David Hill
David Hill 2021-1-2
a=1.63279*10^-6;
b=264.9889;
T=373:10:1273;
Mu = (a*T.^0.5)./(1+b./T);
n = 0.666;
T0 = 273;
Mu0 = 1.375*10^-5;
MuT = Mu0.*(T./T0).^n;
plot(T, Mu,T,MuT);

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