introduction to pytorch [[ ][ ]]]in [ ] shape out[ ]torch size([ ]in [ ] squeeze(in [ ] out[ ]tensor([[ ][ ]]in [ ] shape out[ ]torch size([ ]similarlythe unsqueeze method adds new dimension with value of oneas illustrated in listing - note how the extra dimension could be added at three different positions listing - reshaping tensor with the unsqueeze method in [ ] torch zeros( , in [ ] out[ ]tensor([[ ][ ]]in [ ] shape out[ ]torch size([ ]in [ ] torch unsqueeze( in [ ] out[ ]