First Semester in Numerical Analysis with Julia, 2020a

CHAPTER 1. INTRODUCTION 23
Control flow
Let’s create an array of 10 entries of floating-type. A simple way to do is by using the
function zeros(n), which creates an array of size n, and sets each entry to zero. (A
similar function is ones(n) which creates an array of size n with each entry set to 1.)
In [52]: values=zeros(10)
Out[52]: 10-element Array{Float64,1}:
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
Now we will set the elements of the array to values of sin function.
In [53]: for n in 1:10
values[n]=sin(n^2)
end
In [54]: values
Out[54]: 10-element Array{Float64,1}:
0.8414709848078965
-0.7568024953079282
0.4121184852417566
-0.2879033166650653
-0.13235175009777303
-0.9917788534431158
-0.9537526527594719
0.9200260381967907