Half of the GRAND CHALLENGE EQUATIONS (courtesy of San Diego Supercomputer Center)
1.	¶tv + (v×Ñ)v = - (1/r)ÑP + Ñ2 v - ÑF	A.	Poisson Equation
2.	Ñ2u = ¶tu	B.	Discrete Fourier Transform
3.	- Ñ2 u + lu = f	C.	Helmholtz Equation
4.	[ ¶x ¶x F + ¶y ¶y F + ¶z ¶z F ] = 4p Gr	D.	Schroedinger Equation
5.	N - 1 Fj = S fk e2pijk/N k = 0	E.	Navier-Stokes Equation
6.	- [ h / ( 2pi ) ] ¶tY(r,t) = - [ h2 / ( 8p2m ) ] Ñ2 Y(r,t) + VY(r,t)	F.	Heat Equation