# Math Help - More matlab help needed please

1. ## More matlab help needed please

I have a function

x = 0:0.05:5.05
eta = 2*rand()-1
y = sin(x) + cos(x) + eta*0.1

This plots a smooth curve where eta is a fixed value for every point from 0:0.05:5.05

I want eta to change for every alue from 0:0.05:5.05

How do i do this?

I have a function

x = 0:0.05:5.05
eta = 2*rand()-1
y = sin(x) + cos(x) + eta*0.1

This plots a smooth curve where eta is a fixed value for every point from 0:0.05:5.05

I want eta to change for every alue from 0:0.05:5.05

How do i do this?
Code:
x = 0:0.05:5.05
eta = 2*rand(size(x))-1
y = sin(x) + cos(x) + eta*0.1
CB