Question

what it is the difference between these commands? what command would I use to create an array that spans between 5 and 25 and is equispaced into four intervals?

command 1: x= 5:5:25

command 2: x =linespace(5,25,4)

Answer 1

1) x= 5:5:25 will return 5 10 15 20 25

It will create array of number between 5 and 25 at 5 integers apart

2) x =linspace(5,25,4) returns 5.0000 11.6667 18.3333 25.0000

will return 4 numbers between 5 and 25 which are equidistant

If you want 4 intervals you have to use  x= 5:5:25

The four intervals are (5,10), (10,15), (15,20), (20,25)