file containing some basic helper functions More...
Include dependency graph for helpers.cpp:
Namespaces | |
| namespace | jive_helpers |
| namespace for all helper functions | |
Functions | |
| Vector | jive_helpers::funcGrad (const Ref< Function > func, const Vector &args) |
| gets the gradient of a multivariate function. | |
| Vector | jive_helpers::evalFuncs (const FuncUtils::FuncArray funcs, const Vector &args) |
| evaluates an array of multivariate functions. | |
| Matrix | jive_helpers::funcHessian (const Ref< Function > func, const Vector &args) |
| gets the Hessian of a multivariate function. | |
| Matrix | jive_helpers::gradFuncs (const FuncUtils::FuncArray funcs, const Vector &args) |
| gets the gradients of an array of multivariate functions. | |
| Matrix | jive_helpers::eye (const idx_t dim=3) |
| generates an identity matrix of the given dimension. | |
| void | jive_helpers::logMat (const Vector &rv, const Matrix &R) |
| compute rotational vector from rotation matrix. | |
| void | jive_helpers::vec2mat (const Matrix &mat, const Vector &vec) |
| rearrange a vector into a matrix. | |
| void | jive_helpers::mat2vec (const Vector &vec, const Matrix &mat) |
| rearrange a matrix into a vector. | |
| void | jive_helpers::mul3 (const Matrix &C, const Matrix &A, const Matrix &B) |
| C = A * B for 3 x 3 matrices without heap allocation. | |
| void | jive_helpers::mul3 (const Vector &y, const Matrix &A, const Vector &x) |
| y = A * x for a 3 x 3 matrix without heap allocation. | |
| void | jive_helpers::expVec (const Matrix &Exp, const Vector &v) |
| compute the exponential of a axial vector. | |
| void | jive_helpers::expVecP (const Matrix &ExpP, const Vector &v, const Vector &vP) |
| derivative of jive_helpers::expVec. | |
| double | jive_helpers::trace (const Matrix &mat) |
| calculate the trace of a matrix. | |
| idx_t | jive_helpers::factorial (const idx_t n) |
| calculates the factorial of an integer. | |
| idx_t | jive_helpers::binom (const idx_t n, const idx_t k) |
| calculate the binomial coefficient. | |
| double | jive_helpers::matrixNorm2 (const Matrix &mat) |
| calculates the 2-norm of a matrix. | |
| Matrix | jive_helpers::skew (const Vector &vec) |
| construct a skew symetric matrix from a given vector. | |
| void | jive_helpers::skew (const Matrix &S, const Vector &vec) |
| fill an existing 3 x 3 matrix with the skew symmetric matrix of a vector | |
| Vector | jive_helpers::unskew (const Matrix &mat) |
| construct a axial vector from a given skew-symmetric matrix | |
| void | jive_helpers::setDofValue (jive::util::Constraints &cons, const idx_t idof, const double rval) |
| prescribe the value of a dof, i.e. constrain idof = rval. | |
| void | jive_helpers::linkDofs (jive::util::Constraints &cons, const idx_t idof, const idx_t jdof, const double coeff) |
| link a slave dof to a master dof, i.e. constrain idof = coeff * jdof. | |
