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matlab code for Euler's method

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I have written this code for my class, but keep getting 'index exceeds matrix dimensions' can anyone tell me what's wrong with it?
%%Problem 1.9
%Use Euler's method to solve for the depth of a tank
A = 1250; %area in m^2
Q = 450; %m^3/d
h = .5; %step size
t = 0:h:10; % time in d
dydt = @(t) 3.*Q./A.*sin(t).^2-Q./A
y(1) = 0;
for k=1:length(t)-1
y(k+1) = y(k)+dydt(v(k))*h
[t' y']
I greatly appreciate the help.

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Walter Roberson
Walter Roberson 26 May 2016
What is v ?

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Mary Jeppson
Mary Jeppson 27 May 2016
Thanks.. That was the problem.

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