plot when a value of zero makes issue

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H-M
H-M 2020-8-27
编辑： H-M 2020-8-28
my code below is supposed to plot different graph with different value of t:
many thanks
c=2;
nu = 1*1e-6;
r = linspace(0,100);
t=[1/2 1 2 6 10 20 50 ];
for count=1:7
v = c * (1-exp(-r.^2./(4*nu*t(count))))./r;
plot(r,v,'o-')
legend([' t= ',num2str(t(count))])
legend show
ylabel('v(m/sec)')
xlabel('r(m)')
grid on
hold on
end

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采纳的回答

David Hill
David Hill 2020-8-27
If you change your nu to something more reasonable, it provides the graphs dynamics you are looking for.
nu=10;
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David Hill
David Hill 2020-8-28
No reason to execute hold commend multiple times in the loop. Once is enough.

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