Various Consequences

The Euler equations are an important system of equations in computational fluid dynamics (CFD). They are basically the full continuum equa...

Gilbert Strang discusses the use of a neat built-in function in Octave, kron() , that's pretty useful for doing multidimensional finite ...

Gilbert Strang has an interesting example in one of his linear algebra lectures on eigenvalues that is relevant to the articles I've wr...

Speed seems like a continuing theme on the Octave mailing lists, a recent thread on the list of " comparing the executive speed with Ma...

The real world is noisy, and the differencing operations of edge detection tend to magnify that noise. We can apply some statistical method...

If you are running Fedora 9 you may have run in to this problem ( at least one other guy did ). Taking a look at the bugzilla over at RedH...

Boole, George. "A Treatise on the Calculus of Finite Differences", Macmillan and Co., 1872. The public domain and Google books i...

There are some good examples floating around of creating customized image processing kernels in the python imaging library (PIL). It'...

In image processing the discrete difference operators to calculate gradients and second derivatives are called "masks". They are o...