Octave UPM problem

[rufsiany]

Hello,
I've been searching for some GUI front end for Octave for some time and just
today came across the brilliant Octave UPM. But after playing around for a
few minutes, I found that sometimes multiplying matrix by a scalar doesn't
give the correct results. I don't have Octave 3.6.2 compiled with VS, which
UPM Octave is based on, but the mingw version 3.6.2, I use, behaves
correctly.

In the example below of the UPM version, the matrix is a result of calling
the "wienrnd" function. Multiplying it by 5 gives strange results:


>> wnr = wienrnd (2,8,8)         
wnr =

  0.12500  -0.14346  -0.00996  -0.01769  -0.09809  -0.29141  -0.66246 
0.21502  -0.05021
  0.25000  -0.32987  0.36572  -0.19571  -0.47057  -0.26569  -0.48931 
-0.19764  -0.19126
  0.37500  -0.89128  -0.40626  -0.24054  -0.79434  -0.07082  -1.17389 
0.01741  0.31736
  0.50000  -1.30473  -1.08801  -0.15474  -0.57085  -0.33015  -1.13230 
-0.15042  0.57384
  0.62500  -0.97855  -1.45742  -0.11478  -0.24397  -0.76436  -1.12999 
-0.26776  0.17453
  0.75000  -0.63273  -1.71002  0.55411  1.22800  -0.97141  -1.39005 
-0.52772  0.45839
  0.87500  -0.52147  -1.66481  0.20736  1.00382  -0.81109  -0.97733 
-0.49950  -0.35432
  1.00000  0.03512  -1.02482  -0.11592  0.82814  -1.20891  -1.20896 
-0.84940  -0.19286
  1.12500  0.32241  -0.53098  0.05954  0.94293  -1.03769  -1.79697  -1.00988 
0.12688
  1.25000  0.02102  -0.21186  0.40525  0.67732  -0.65204  -1.85381  -0.74743 
-0.37683
  1.37500  0.57876  -0.35670  0.55405  0.68633  -0.47886  -1.03869  -0.68177 
-0.43835
  1.50000  0.63651  -0.15772  0.28846  0.85061  -0.21789  -0.78991  -0.10397 
-0.14196
  1.62500  0.54970  -0.19866  0.50000  0.64156  -0.09773  -0.84530  -0.83896 
-0.00997
  1.75000  0.44090  -0.77706  0.46982  0.92536  0.07399  -0.76027  -0.71449 
0.11840
  1.87500  0.47665  -0.80388  0.41928  0.89688  -0.39765  -0.80179  -0.77270 
-0.43913
  2.00000  0.35018  -1.07899  0.12233  1.14020  -0.82989  -0.57488  -0.72834 
-0.48806

>> wnr * 5
ans =

  1.0e+001 *

  0.06250  -0.07173  -0.00498  -0.00884  -0.04904  -0.14571  -0.33123 
0.10751  -0.02511
  0.12500  -0.16493  0.18286  -0.09785  -0.23529  -0.13284  -0.24465 
-0.09882  -0.09563
  0.18750  -0.44564  -0.20313  -0.12027  -0.39717  -0.03541  -0.58695 
0.00871  0.15868
  0.25000  -0.65236  -0.54400  -0.07737  -0.28543  -0.16508  -0.56615 
-0.07521  0.28692
  0.31250  -0.48928  -0.72871  -0.05739  -0.12198  -0.38218  -0.56500 
-0.13388  0.08726
  0.37500  -0.31636  -0.85501  0.27706  0.61400  -0.48570  -0.69503 
-0.26386  0.22919
  0.43750  -0.26074  -0.83240  0.10368  0.50191  -0.40555  -0.48867 
-0.24975  -0.17716
  0.50000  0.01756  -0.51241  -0.05796  0.41407  -0.60446  -0.60448 
-0.42470  -0.09643
  0.56250  0.16120  -0.26549  0.02977  0.47147  -0.51884  -0.89848  -0.50494 
0.06344
  0.62500  0.01051  -0.10593  0.20262  0.33866  -0.32602  -0.92690  -0.37372 
-0.18842
  0.68750  0.28938  -0.17835  0.27703  0.34317  -0.23943  -0.51935  -0.34088 
-0.21917
  0.75000  0.31826  -0.07886  0.14423  0.42530  -0.10894  -0.39496  -0.05199 
-0.07098
  0.81250  0.27485  -0.09933  0.25000  0.32078  -0.04887  -0.42265  -0.41948 
-0.00498
  0.87500  0.22045  -0.38853  0.23491  0.46268  0.03700  -0.38014  -0.35725 
0.05920
  0.93750  0.23833  -0.40194  0.20964  0.44844  -0.19882  -0.40089  -0.38635 
-0.21956
  1.00000  0.17509  -0.53950  0.06116  0.57010  -0.41495  -0.28744  -0.36417 
-0.24403

>>

Cheers
Greg



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