Array of N prime numbers
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Leandro Cavalheiro
el 26 de Jun. de 2016
Comentada: Gangga Fardede
el 30 de Oct. de 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 comentario
Gangga Fardede
el 30 de Oct. de 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'
Respuesta aceptada
Walter Roberson
el 26 de Jun. de 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 comentarios
Walter Roberson
el 26 de Jun. de 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
el 26 de Jun. de 2016
Editada: Walter Roberson
el 26 de Jun. de 2016
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