[Octave-bug-tracker] [bug #63281] bsxfun fails to preserve sparse output for some functions

[Nicholas Jankowski]

Follow-up Comment #10, bug #63281 (project octave):

and acts like multiplication, or acts like addition...

&

A = sprand (10, 10, 0.1);
x = 1;
Ax=issparse(A & x)
sx = sparse (x);
Asx=issparse(A & sx)
r = 1:10;
Ar=issparse(A & r)
sr = sparse (r);
Asr=issparse(A & sr)
Ax =
  logical
   1
Asx =
  logical
   1
Ar =
  logical
   1
Asr =
  logical
   1


|

A = sprand (10, 10, 0.1);
x = 1;
Ax=issparse(A | x)
sx = sparse (x);
Asx=issparse(A | sx)
r = 1:10;
Ar=issparse(A | r)
sr = sparse (r);
Asr=issparse(A | sr)
Ax =
  logical
   0
Asx =
  logical
   1
Ar =
  logical
   0
Asr =
  logical
   1



I think the Ax vs Asx answers your second question, but maybe 'adding a
scalar' matters. will try a few of those next


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