Assume a general nelement sequent for write an expression in
Solution
%first one starts here
x = [10 2 14 7 9 12 31 6 4 7];
[r c]=size(x);
index =1;
for i=1:3:c%takes the step 3, so that other two will be get skipped
newx(index)=x(i);
index = index+1;
end
disp(newx)
output:
10 7 31 7
%second one starts here
x = [10 2 14 7 9 12 31 6 4 7];
[r c]=size(x);
index =1;
for i=-1:c
if i<1%condition to insert two zeros in the beginning of the matrix
newx(index)=0;
else
newx(index)=x(i);
end
index = index+1;
end
disp(newx);
output:
Columns 1 through 7
0 0 10 2 14 7 9
Columns 8 through 12
12 31 6 4 7
