David's Octave Assignment: Difference between revisions

Latest revision as of 09:10, 4 October 2010

You can abort any command in octave by pressing Ctrl C.

and you can create a diagonal matrix by entering diag([1 2 3]) it looks like this.

    diag([1 2 3])

ans =

  1   0   0 
  0   2   0
  0   0   3

@@ Line 1: / Line 1: @@
+You can abort any command in octave by pressing Ctrl C.
-I followed the Instructions "Read this first!!" For acquiring a copy of Octave.  I just copied it to my flash drive from a computer lab pc.
+and you can create a diagonal matrix by entering diag([1 2 3])
-I played around with Octave as instructed, But I still don't understand it very well.  I plotted a couple graphs, but I don't understand the proper syntax format for Octave,  I got many syntax errors because I'm not familiar with the symbols and code for entering functions and commands.
+it looks like this.
+     diag([1 2 3])
-If I enter:
-y=x;
-plot (x,y)
+ans =
-then it plots the graph of y=x.
+0   0
-But when I enter:
+2   0
-y=x^2;
+0   3
-plot (x,y)
-it says: error: For A^B, A must be square.
-I'm confused, but Hopefully I'll figure out more in the future.
-I spent 1 hour installing this program and trying to figure it out.
-David