P(r) function calculator
This Javascript calculates the distance-distribution function of models consisting of up to 8 spheres with different x/y/z coordinates and optionally different radii and different electron densities using the Debye-formula in real space. Enter the number of spheres, their coordinates x(i), y(i), z(i), their radii r(i) and their electron-densities c(i). The spheres can also overlap (totally or partially) where the resulting electron density of the overlapping region is the sum of the overlapping electron densities. For N points the p(r) function from r = 0 to rz with a scaling factor f (optionally also the gamma (r)-function) will be calculated. The values are listed in r vs p(r) or vs gamma(r) in arbitrary units and can be copied and pasted from the window into any text-file for further processing and graphical displaying.

Input p(r) action
rz n f
x(1) y(1) z(1) r(1) c(1)
x(2) y(2) z(2) r(2) c(2)
x(3) y(3) z(3) r(3) c(3)
x(4) y(4) z(4) r(4) c(4)
x(5) y(5) z(5) r(5) c(5)
x(6) y(6) z(6) r(6) c(6)
x(7) y(7) z(7) r(7) c(7)
x(8) y(8) z(8) r(8) c(8)



Author: M.Kriechbaum, TU-Graz (2012), e-mail: manfred.kriechbaum@tugraz.at