[Wavepacket-ng-devel] Summary chat 11-Dec-2014

[Ulf L. <ul...@wa...>]

Hi,

just had a chat with Yan Wang on a rewrite of the interpolation code
(task #48).

Summary:

* some chit-chat, big picture of the rewrite etc.
	- make an interpolation class as a functor
	- add functions to load data from file and set up interpolation
	- rewrite builder/uncorrelated/InterpolatedState and add a few
	  new operators that take arbitrary functors (which may be
	  interpolated data)
* first task: basic interpolation class
	- constructor:
		- takes two const RTensor&: x0, y(x0)
		- throw std::invalid_argument if sizes < 3
		- throw std::invalid_argument if sizes do not match
		- ignore dimensions of input tensors
		- sort automatically if input is unsorted
	- double operator()(double x)
		- return the interpolated value


Ulf