R: Octave 3.2.3: wrong matrix calculation

--- Lun 3/5/10, texsit ha scritto: > Hi All, > I use octave 3.2.3 under Cygwin (windows 7) for my math > application. > I discovered a bad calculation calling the function det(). > The step to reproduce is this: > > > A = [1,2,3;4,5,6;7,8,9]; > > det(A) > ans = -9.5171e-16 > > The matrix is si

Octave 3.2.3: wrong matrix calculation

Hi All, I use octave 3.2.3 under Cygwin (windows 7) for my math application. I discovered a bad calculation calling the function det(). The step to reproduce is this: > A = [1,2,3;4,5,6;7,8,9]; > det(A) ans = -9.5171e-16 The matrix is singular so I expected the resul was 0 and not a very very l