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Why is my graph stopping at 10?

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Krish Desai
Krish Desai 2016-2-16
评论： KSSV 2016-2-16
So I'm graphing the following (note: I'm also graphing a direction field) and when I plot it the graph stops when x=10. Any suggestions?
fishfun = @(y) (1.2*y.^2)/1+y.^2;
y=linspace(0,10,200);
%(1.2*y.^2)./(1+y.^2); %we generated TWO vectors 1.2y^2 and 1+y^2. To get
%the quotient, we need to divide COMPONENT WISE.
plot(y,(.65*y)-(0.65*y.^2/10.5));
title('Graph of Rainbow Trout')
ylabel('Amount of fish (hundreds)')
xlabel('Time (days)')
hold on
f= @ (t,y) (.65*y)-(0.65*y.^2/10.5)-(((1.2*(y^2))/(1+(y^2))));
dirfield(f,0:1:30, 0:.05:2)
title 'Direction Field of Rainbow Trout'
  1 个评论
KSSV
KSSV 2016-2-16
what is dirfield? Code can be checked if dirfield is known.

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the cyclist
the cyclist 2016-2-16
编辑：the cyclist 2016-2-16
In the first plot, it's because in this line:
y=linspace(0,10,200);
you define that y ranges from 0 to 10.
I can't run dirfield, so I'm not sure about the second plot.

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