How I can to realize this function

Hello to everyone!

I need help in solving this function, please!

[John D'Errico]

When you edit your question away, you insult those who apparently wasted their time in answering your question, since now their answer is useless to anyone else.

[Rik]

Unfortunately for Vladislav Tepper, Google keeps a cache. So If you want to cheat, you will have to be a bit more cunning. Or not post on a public forum.

How I can to realize this function

Hello to everyone!

I need help in solving this function, please!

I tried to solve it with different methods, but nothing worked.

here is my last solution which doesn't work either.

Answer 1

[KSSV]

n = 1:20 ;
y = zeros(size(n)) ;
y(n<=5) = n(n<=5).^2 ;
stem(n,y)

Answer 2

[Alan Stevens]

Use indexing:

Parabula = @(n) n.^2;
n = -2:6;
y = Parabula(n);
y(n<1 | n>5) = 0;
stem(n,y)
axis([-10 10 0 30])

[Gertruda Radomir]

Thank you very much!