Replacement for for loops
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Dhananjay Mishra
el 12 de Oct. de 2018
Comentada: Star Strider
el 12 de Oct. de 2018
Hello everyone. I want to construct an array of data which will contain values like below example. Any suggestions on how to do this without using for loop will be very helpful. Thank you!
A = zeros();
x1 = 1
for u = -1:1:1
for v = -1:1:1
A(x1) = exp((-1i*(u-v).^2)/2);
x1 = x1+1;
end
end
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Respuesta aceptada
Star Strider
el 12 de Oct. de 2018
Try this:
[U,V] = meshgrid(-1:1);
Am = exp((-1i*(U-V).^2)/2);
A = Am(:).';
It produces the same output as your code.
2 comentarios
Star Strider
el 12 de Oct. de 2018
As always, my pleasure.
I cannot understand what you want to do. If your code produces the result you want, just leave it as is. I doubt it can be vectorised.
Also, there are too many parentheses in your ‘value’ assignment, so it throws an error. I eliminated one left parenthesis to make it work:
value(x1,y1) = exp(-1i*((u-x)^2 + (v-y)^2))
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