Sorting Prime Numbers From an Array of Numbers, Into a New Array

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Kevin Krone 2019-9-20

评论： David Hill 2019-9-20

n = [1:1:100];

N = isprime(n);

NN=[];

for i = 1:1:100

if N(i)==1 %if N at a position is equal to 1, then it is a prime number

n(i) %Displays the integer at that position %Now that number needs to be stored in a new array

NN=n(i) %This just sets the new array equal to the prime number n(i), this doesn't store it. It is replaced on the next loop

end

I need to know how to make a new array filled with the prime numbers from the loop

David Hill 2019-9-20

Why not use the primes function?

NN=primes(100);

madhan ravi 2019-9-20

Homework probably.

David Hill 2019-9-20

NN=n(ismember(n,primes(max(n))));

For generic array n.

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