1) benchmark against CTM v 6.1 from the VBA implementation.
2) expanded root profile function to include an exponential decay (aexp(bx)+m).
3) generalized non-root volume function that will calculate the non-root volume from a given root density function.
4) key bug fixes.
This update includes
1) benchmark against CTM v 6.1 from the VBA implementation. 2) expanded root profile function to include an exponential decay (aexp(bx)+m). 3) generalized non-root volume function that will calculate the non-root volume from a given root density function. 4) key bug fixes.