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My code takes so long to execute

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Muhamed Sewidan
Muhamed Sewidan on 3 Feb 2021
Commented: Image Analyst on 5 Feb 2021
My code works fine until it gets to this block. This loop takes too long to execute. Is there any way to solve this problem?
if ~exist('nworkers','var'), nworkers = 0; end % default nworkers to zero
r1 = rad(1);
parfor (i = 1 : numel( kru ), nworkers)
jlu(:,i) = sbesselj ( lkr, kru(i) );
djlu(:,i) = dsbesselj ( l, kru(i) );
if ru(i) > r1
hlu(:,i) = sbesselh ( lkr, kru(i) );
dhlu(:,i) = dsbesselh ( l, kru(i) );
end
end

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R2018a

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