How to print all prime numbers between 1 and 100 using a for loop?

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Elijah McNeil 2020-10-28

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https://ww2.mathworks.cn/matlabcentral/answers/628618-how-to-print-all-prime-numbers-between-1-and-100-using-a-for-loop

评论： KSSV 2020-10-28

for f = (1:100)
    f
     isprime(f)
   j = all(f)  
end
fprintf('%j',j) 

This is what I have, I either get j as logical or if I change it to "fprintf('%f', f)" I get f = 100.

I need to print the prime numbers.

What am I doing wrong?

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采纳的回答

KSSV 2020-10-28

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https://ww2.mathworks.cn/matlabcentral/answers/628618-how-to-print-all-prime-numbers-between-1-and-100-using-a-for-loop#answer_526428

编辑：KSSV 2020-10-28

在 MATLAB Online 中打开

num = 1:100 ;  % numbers till 100 
idx = isprime(num) ;   % get logical indices of prime numebrs 
num(idx)  % print the prime numbers 
ans = 1×25
     2     3     5     7    11    13    17    19    23    29    31    37    41    43    47    53    59    61    67    71    73    79    83    89    97