gf_integ
Purpose
Description
Here is a list of some integration methods defined in getfem++ (see the
description of finite
element and integration methods for a complete reference):
Note that 'exact integration'
should be avoided in general, since they only apply to linear
geometric transformations, are quite slow, and subject to
numerical stability problems for high degree FEMs.
| IM_EXACT_SIMPLEX(N) | exact integration on simplices. |
| IM_PRODUCT(a, b) | product of two integration methods |
| IM_EXACT_PARALLELEPIPED(N) | exact integration on parallelepipeds |
| IM_EXACT_PRISM(n) | exact integration on prisms |
| IM_GAUSS1D(K) | Gauss method on the segment, order K |
| IM_NC(N,K) | Newton-Cotes approximative integration on simplices, order K |
| IM_NC_PARALLELEPIPED(N,K) | product of Newton-Cotes integration on parallelepipeds |
| IM_NC_PRISM(N,K) | product of Newton-Cotes integration on prisms |
| IM_GAUSS_PARALLELEPIPED(N,K) | product of Gauss1D integration on parallelepipeds |
| IM_TRIANGLE(K) | Gauss methods on triangles (K=1,3,5,6,7,8,9,10,13,17,19) |
| IM_TETRAHEDRON(K) | Gauss methods on tetrahedrons (K=1, 2, 3, 5, 6 or 8) |