Create an array for ? from 0 to 2? with 1000 elements and generate a graph showing sin(n?) for n=1, 2, … 5,

This is the Question but when I multiply n with theta it gives any error >> y = sin(n*theta); Error using * Inner matrix dimensions must agree. anyone can help with this.

[Rena Berman]

(Answers Dev) Restored Question.

Answer 1

[KSSV]

th = linspace(0,2*pi,1000) ;
n = 1:5 ;
y = zeros(length(n),1000) ;
for i = 1:length(n)
    y(i,:) = sin(n(i)*th) ;
end

[Guillaume]

Why the loop?

In 2016b:

y = n.' .* th;

Prior to 2016b:

y = bsxfun(@times, n.', th);

[KSSV]

@ Guillaume yes you are right, but for the beginners to learn coding loop is one of the basic. On using straight away inbuilt functions I feel they cannot learn much of coding.

[Hamid Bakht]

how to add legends with graphs in this case