Schrödinger Lab 2.11 and beyond.

I've submitted the next update to Schrödinger Lab on the Apple App Store.   It fixes a nasty problem in which the code fails to run at all for people using OSX 10.7.  I traced the problem to a single field in Xcode (the Apple development environment), in which I had unfortunately set the deployment target of a code-library to 10.8, thus meaning it wouldn't compile on 10.7.

I of course apologize to all those affected, but mistakes do happen and it's not easy to check that the code I'm writing runs on OS versions other than the one I'm using.

After the next update, Schrödinger Lab should also run on OS 10.6.

Finally- the code now uses much less memory for the 2D palette calculations.



I'm now busy working on Schrödinger Lab 2.2 and I've got some cool stuff in the works.  The planned 2.2 update will allow the user to easily switch between displaying eigenfunctions or basis-functions.  Thus, at long last, users will be able to actually view the basis functions the code uses internally.

One of the main reasons I'm implementing this is because I've now implemented a set of 2D basis functions which are separable in the polar coordinates r=sqrt(x*x+y*y) and theta=atan2(x,y), which are given by (for mass=hbar=omega0=1)

Phi_mn(r,theta) = A exp[i m theta] L^n_m(r^2) exp(-r^2) r^m

where L^n_m are generalized Laguerre polynomials.

Some readers will recognize that this separable basis is essentially the 2D equivalent of the well known spherical harmonics solutions used in 3D problems with spherical symmetry.

Anyway- they're very pretty and by allowing users to view the basis functions directly, the code can be used to visualize these functions and to form different linear combinations.

Pictures soon!