I read some of the code from apache mahout and find that their
Vector/Matrix contain some useful methods. These methods borrow the style
of functional programming by allowing a function to apply to all the
elements of a Vector/Matrix.
For example, given a matrix m, if we want to apply a function f(x) to all
the elements, we can simply use *m.assign(DoubleDoubleFunction f)* instead
of a nested loop. This style can simply the coding, especially for those
algorithms where Vector/Matrix operations are heavily used.
I'm wondering can we also add such methods as well as the associated
classes?
Regards,
Yexi
