Conditional 'for loop', simpler ?

1 view (last 30 days)
Ole
Ole on 10 Mar 2019
Commented: Ole on 10 Mar 2019
Is it possible make a for double loop simpler.
x=linspace(-2,2,100); s=1/2;
[X,Y]=meshgrid(x,x);
A = X.^2; B = Y;
for k=1:size(x,1)
for j=1:size(y,2)
if s<X(k,j)
L(k,j)=A(k,j).*sin(s);
M(k,j)=B(k,j).*sin(s);
else %(s>X(k,j))
L(k,j)=A(k,j).*cos(s/2);
M(k,j)=B(k,j).*cos(s/2);
end
end
end
  2 Comments
Geoff Hayes
Geoff Hayes on 10 Mar 2019
Ole - should the condition for the if statement correspond to A(k,j) or a(k,j)?
Ole
Ole on 10 Mar 2019
Thanks it is actually the X(i,j), s<X(k,j).

Sign in to comment.

Accepted Answer

madhan ravi
madhan ravi on 10 Mar 2019
No loops needed:
L=zeros(size(A));
M=zeros(size(B));
L(s<A)=A(s<A).*sin(s);
M(s<A)=B(s<A).*sin(s)
L(s>A)=A(s>A).*cos(s/2);
M(s>A)=B(s>A).*cos(s/2)

More Answers (0)

Categories

Find more on Loops and Conditional Statements in Help Center and File Exchange

Products


Release

R2016b

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!