Name: Anonymous 2008-03-22 18:28
Consider http://img521.imageshack.us/img521/369/chartov2.png
Function f(n,x) is numerically defined for specific values of x (the points) for specific values of n (the dotted lines connecting them). Some of these values are coincident (on the chart, the right-most values of f(2) and f(3) in this case). This is monotonic increasing with respect to both n and x. It models a physical scenario, so parameters n and x are continuous, as is the range of f.
Where n is one of the prior-known values and x is not, linear interpolation will suffice, similarly when x is prior-known and n is not. But when both n and x are between their respective defined values, how to interpolate?
Ultimately, I am looking for a way to collate such a series of data, such that from the dataset I can calculate e.g. f(30,0.5). No particular preference of language, an algorithm will do.
Function f(n,x) is numerically defined for specific values of x (the points) for specific values of n (the dotted lines connecting them). Some of these values are coincident (on the chart, the right-most values of f(2) and f(3) in this case). This is monotonic increasing with respect to both n and x. It models a physical scenario, so parameters n and x are continuous, as is the range of f.
Where n is one of the prior-known values and x is not, linear interpolation will suffice, similarly when x is prior-known and n is not. But when both n and x are between their respective defined values, how to interpolate?
Ultimately, I am looking for a way to collate such a series of data, such that from the dataset I can calculate e.g. f(30,0.5). No particular preference of language, an algorithm will do.