In MATLAB, the isprime () function is used to check whether or not a given numbe

Question

In MATLAB, the isprime () function is used to check whether or not a given number is prime. By combining this function with a while loop and other MATLAB functions (which you have learned), It is possible to generate matrices of prime numbers (a feat that Is not normally possible using analytical methods, since prime numbers have no pattern). Write a script that will create a 20 element column vector of the first twenty prime numbers above 34. Write a script that will create a 20 element column vector of random prime numbers between 2 and 101.

Explanation / Answer

-------- function ------------

function flag=isprime(x)

flag=0

i=2

while(i<=x/2)

if(x%i==0)

flag=1

end

i++

end

end

Script 1

count=0

i=0

primevect=[]

while(count<20&&i<=34)

if(isprime(i)==0)

primevect[count]=i

count++

end

i++

end

Script 2

count=0

primevect=[]

while(count<20)

a = 2; b = 101;

i= (b-a).*rand(20,1) + a;

if(isprime(i)==0)

primevect[count]=i

count++

end

end

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