Why doesn't it work ?

Why doesn't it work ?
I don't understand

3 Comments

dpb
dpb on 15 Jan 2023
Paste your code as text and format it with the "Code" button instead of as image...
But, you are missing the difference between array and element-wise multiplication. See the times, .* documentation for all the info...the "dot" operators are key.
David
David on 15 Jan 2023
s = 1.25;
t1 = 0:0.01:pi/2;
t2 = pi/2:0.01:pi;
t = [t1 t2];
p = [(4*(sin(2*t1))(sin(2*t1)))*exp(-(t/s)(t/s))+2) (4*(sin(2*t2))*(sin(2*t2)))*exp(-t2/s)+2)];
figure()
plot(t ,p)
xlabel("yura")
ylabel("elad")
title("lauren hazout")
dpb
dpb on 15 Jan 2023
That's better, thanks, but why not edit the original Q? and put the code there? Will it not let you edit your own Q?.
But, you've not taken the advice to heed -- the problem is still that you're not using the "dot" operators...

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Answers (2)

s = 1.25;
t1 = 0:0.01:pi/2;
t2 = pi/2:0.01:pi;
t = [t1 t2];
x1=4*sin(2*t1).*sin(2*t1).*exp(-(t1/s))+2;
x2=4*sin(2*t2).*sin(2*t2).*exp(-(t2/s))+2;
p =[x1 x2];
plot(t,p)
xlabel('yura'); ylabel('elad')
title('lauren hazout')
s = 1.25;
t1 = 0:0.01:pi/2;
t2 = pi/2:0.01:pi;
t = [t1 t2];
p=[4*sin(2*t1).^2.*exp(-(t1/s).^2)+2 4*sin(2*t2).^2.*exp(-(t2/s))+2]
p = 1×316
2.0000 2.0016 2.0064 2.0144 2.0255 2.0398 2.0572 2.0776 2.1011 2.1275 2.1569 2.1890 2.2239 2.2615 2.3017 2.3443 2.3894 2.4367 2.4862 2.5378 2.5913 2.6466 2.7036 2.7621 2.8221 2.8833 2.9457 3.0091 3.0734 3.1384
%
plot(t,p)
xlabel('yura'); ylabel('elad')
title('lauren hazout')
As the error suggests, use element wise powee .^

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Asked:

on 15 Jan 2023

Answered:

on 2 Mar 2023

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