Switched CI to Octave 3.6.4

Author: albertoandreottiATgmail

.travis.yml

@@ -1,7 +1,8 @@
 before_script:
-  - sudo apt-add-repository -y ppa:picaso/octave
+  - sudo apt-add-repository ppa:octave/stable
   - sudo apt-get update 
-  - sudo apt-get install octave
+  - sudo apt-get install octave 
+  - sudo apt-get install liboctave-dev
 script:
   - sh -c "octave tests/runalltests.m"
 

CNN/cnnnumgradcheck.m

@@ -11,8 +11,6 @@ function cnnnumgradcheck(net, x, y)
         d = (net_p.L - net_m.L) / (2 * epsilon);
         e = abs(d - net.dffb(j));
         if e > er
-            e
-            d / net.dffb(j)
             error('numerical gradient checking failed');
         end
     end
@@ -27,8 +25,6 @@ function cnnnumgradcheck(net, x, y)
             d = (net_p.L - net_m.L) / (2 * epsilon);
             e = abs(d - net.dffW(i, u));
             if e > er
-                e
-                d / net.ffW(i, u)
                 error('numerical gradient checking failed');
             end
         end
@@ -45,8 +41,6 @@ function cnnnumgradcheck(net, x, y)
                 d = (net_p.L - net_m.L) / (2 * epsilon);
                 e = abs(d - net.layers{l}.db{j});
                 if e > er
-                    e
-                    d / net.layers{l}.db{j}
                     error('numerical gradient checking failed');
                 end
                 for i = 1 : numel(net.layers{l - 1}.a)