Given that a=[1;4.2;3​;pi;8;7;62​;50;23;17]​; Please use vector b to represent all the even elements in vector a (b=[8;62;50])?

Given that a=[1;4.2;3;pi;8;7;62;50;23;17]; Please use vector b to represent all the even elements in vector a (b=[8;62;50])?

someone can help me how to fix it below ?

a=[1;4.2;3;pi;8;7;62;50;23;17];
n=length(a);
b=zeros(n,1);
t=0;
for m=1:n
    if rem(a(m),2)==1
        t=t+1;
        b(t)=a(m);
    end
end
b(t+1:n)=[];

Answer 1

[KSSV]

Use modto get your even numbers.

a = [1; 4.2; 3; pi; 8th; 7; 62; 50; 23; 17];
idx = mod (a, 2);
iwant = a (idx == 0)