2008 March | Loren on the Art of MATLAB

J.B. Brown: Ah, and I am at fault for simply testing collinearity with the origin in the example above.
J.B. Brown: Indeed, > collinear( [0 3],[0 8],[0 -1e21+2e-15] ) ans = 1 > collinear( [0 3],[0 8],[0 -1e22+2e-15]...
OkinawaDolphin: Loren, thank you for telling me where to download timeit. Here are the two functions I just tested...
Loren: JB- It looks to me like Ilya’s solution and therefore yours are equivalent to the determinant. As Tim...
Loren: OkinawaDolphin, timeit can be downloaded from the File Exchange. Steve Eddins is the author. It does not ship...
OkinawaDolphin: It seems that neither R2007a nor R2007b have the function timeit, but I investigated computation time...
J.B. Brown: It would appear to me that Ilya Rozenfeld’s solution would be the cleanest. Just to help those who...
Loren: Markus- Congratulations on winning! And a nice illustration of how the size matters. Small enough, and the...
Markus: Hi Loren, which version is fastest also depends very much on the matrix dimensions. Look at my test function:...
Duncan: OkinawaDolphin, Regarding why your third example is slower than your second example, the result is in fact...

Loren on the Art of MATLAB