[eigen] Vector generators

[Manoj Rajagopalan <rmanoj@xxxxxxxxx>]

Hi,

   I frequently generate mesh-data of the form f((1:n)*factor), where n is the 
number of elements in the mesh, factor is some multiplicative factor 
(mesh-spacing), and f() is some function that operates on each of the 
generated values. Is something like this possible with concise syntax in 
eigen?

   The quantity (1:n) can be thought of as an extension of the constant-vector 
concept. A further extension is the vector generated by (start,finish,delta). 
These vectors, like eigen's constant-vectors, can be concisely encoded and 
expanded at assignment-time.

Thanks,
Manoj