Array of N prime numbers
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Leandro Cavalheiro
le 26 Juin 2016
Commenté : Gangga Fardede
le 30 Oct 2017
Hello. I'm new to MatLab. I've just written a code to identify if a given number N is a prime number.
Basically, that's it:
function [out] = myIsPrime(n)
if n == 1
out = 0;
elseif n == 2
out = 1;
elseif all(rem(n,2:n-1) ~= 0)
out = 1;
else
out = 0;
end
end
Now I want my output to be the first 'N' prime numbers counting from 2 and up.
I've been trying for hours but my brain is just frozen. How do I do that using if, for or while loops?
1 commentaire
Gangga Fardede
le 30 Oct 2017
I want to ask, how to make a row, if we input number, the output will display prime number have a lot of n Like we input '4' abd will dispay '2 3 5 7'
Réponse acceptée
Walter Roberson
le 26 Juin 2016
while the count of primes found is less than your target count, keep trying the next number in sequence to determine whether it is prime; if it is then increment the count of primes found and store the prime in your array.
3 commentaires
Walter Roberson
le 26 Juin 2016
num_primes_found = num_primes_found + 1;
list_of_primes(num_primes_found) = the_candidate_number;
To store only N numbers, use a while loop on num_primes_found
Leandro Cavalheiro
le 26 Juin 2016
Modifié(e) : Walter Roberson
le 26 Juin 2016
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