Did not get the row vector as expected.

Question

Zuhri Ashraaf 2020-12-6

评论： Zuhri Ashraaf 2020-12-6

Hi everyone!

I have this code.

x = 0:0.1:100;
y = cos(x)/(2-cos(x));

I was expecting my y to be a row vector too like x. However, when I declare it, the output is only y = -0.1122.

The question is why is that and what should I do to make y as a vector like x.

I haven't finish my Onramp tutorial, but I'm just curious and at the same time confused.

Sorry if my question is too basic to be asked and sorry again for my bad English.

Thank you in advanced!

Answer 1

Image Analyst 2020-12-6

编辑：Image Analyst 2020-12-6

You're doing a "matrix division". Try dot slash to do an element-by-element division:

x = 0:0.1:100;
y = cos(x) ./ (2-cos(x));

Zuhri Ashraaf 2020-12-6

That makes a lot of sense and it works!

Thank you so much!