MATLAB BUILDER JA 2 Guida Utente Scaricare il pdf (Pagina 51)

100

101

Creating an Instance of the Class

myprimes Function

The code for myprimes is as follows:

function p = myprimes(n)

% MYPRIMES Returns the primes between 0 and n.

% P = MYPRIMES(N) Returns the primes between 0 and n.

% This file is used as an example for the MATLAB

% Builder for Java product.

if length(n) ~= 1

error('N must be a scalar');

end

if n < 2

p = zeros(1,0);

return

end

p = 1:2:n;

q = length(p);

p(1) = 2;

for k = 3:2:sqrt(n)

if p((k+1)/2)

p(((k*k+1)/2):k:q) = 0;

end

p = (p(p>0));

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MATLAB BUILDER JA 2 Guida Utente Pagina 51

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