Commit 36c428c0 by Praetorius, Simon

### updated some slides and added cheat sheets

parent 93f0b2e0
 ... ... @@ -10,8 +10,8 @@ @import url(https://fonts.googleapis.com/css?family=Droid+Serif:400,700,400italic); @import url(https://fonts.googleapis.com/css?family=Ubuntu+Mono:400,700,400italic); ... ...
 ## List of Expressions ### Terminal/elemental epressions In the following table, a DV represents a pointer or reference to a DOFVector of some value type T: | Expression | Semantics | | --------------- | ----------------------------- | | valueOf(DV) | Evaluation of a DOFVector in local coordinates | | gradientOf(DV)| Evaluation of the gradient of a DOFVector in local coodinates | | derivativeOf(DV, i) | Evaluation of the partial derivative of a DOFVector w.r.t. component i | | hessianOf(DV) | Evaluation of the hessian of a DOFVector, i.e. H_ij = d_i(d_j(DV)) | | laplacianOf(DV) | Evaluation of the Lacplacian of a DOFVector, i.e. L = sum_i(d_i(d_i(DV))) | | componentOf(DV, i) | The i-th Component of a (vector valued) DOFVector | | X(), X(i) | The global coordinate x(lambda) of the local coordinate lambda, or its i-th component. | | N(b), N(b,i) | The outer boundary normal vector, w.r.t. the boundary face wiht nr b, or its i-th component. | | M(), M(i) | The surface normal vector (element normal) for surface grids, or its i-th component. | | constant(c), c | A constant numeric value | | constant() | A constant numeric value evaluable at compile time. Useful for symbolic differentiation, see below. | | ref_(c) | A reference wrapper of a dynamic numeric value. | The expression valueOf(DV) can also be applied to vector or matrices of DOFVectors.: