This is basically just a wrapper for LINSPACE that does a whole bunch of unnecessary computations. It doesn't matter what the slope, m, is for this computation and it is computed and used to vary how LINSPACE is called. LINSPACE can be called with the same start and end point with a number of divisions and it will be the same as just replicating that number. The author didn't recognize this.
-Anything with four lower case Ls in a row is confusing.
-There is no help, no H1 line
I would also think that for something like this to be useful, it should work in nD space. I.e. start point and end point could be vectors of any dimension and it would output that many vectors corresponding to the line through n dimensions.