• # AHFinderDirect

• Referenced in 29 articles [sw04972]
• dynamic black-hole spacetimes, it is useful to be able to find the apparent horizon ... some local origin, and so parametrize the AH shape by r=h(angle) for some ... function h:S 2 →ℜ + . The AH equation then becomes a nonlinear elliptic ... discretize S 2 using six angular patches (one each in the neighbourhood...
• # SNSequate

• Referenced in 3 articles [sw21191]
• R package SNSequate: Standard and Nonstandard Statistical Models and Methods for Test Equating. Contains functions ... test equating. It currently implements the traditional mean, linear and equipercentile equating methods, as well ... supports newest methods such that local equating, kernel equating (using Gaussian, logistic and uniform kernels...
• # MapDE

• Referenced in 2 articles [sw35022]
• implementation in Maple, for mappings relating differential equations. We consider the problem ... less tractable (Source) systems R to more tractable (Target) systems ^R by exploiting ... fields leaving R invariant. For systems of exact differential polynomials R, ^R our algorithm MapDE ... Source system R to the Target ^R. We use a result of Bluman and Kumei...
• # girdap

• Referenced in 1 article [sw24936]
• oriented grid generation and management library that uses finite volume operator objects to provide researchers ... solve different sets of algebraic and differential equations on multiple grid objects, which are allowed ... performing local anisotropic grid refinement ($h$-adaptation) as well as relocating their vertices ($r$-adaptation ... length scales based on solution field obtained using algebraic and finite volume based differential operator...
• # maxwell

• Referenced in 1 article [sw18089]
• Distributed-memory parallel eigensolver for Maxwell’s equations. A fast multigrid-based electromagnetic eigensolver ... electromagnetics using the Dey-Mittra algorithm [S. Dey and R. Mitra, “A locally conformal finite...
• # rolldown

• Referenced in 1 article [sw28378]
• introduce a numerical method for decomposing differential equations into two terms: the gradient term that ... small compared to the gradient part, we use the gradient term to approximate the potential ... gradient ratio can be used to estimate the local error introduced by our approximation. Both ... ready-to-use implementation in the form of an R package are provided...