# tensorA v0.36.1

0

0th

Percentile

## Advanced Tensor Arithmetic with Named Indices

Provides convenience functions for advanced linear algebra with tensors and computation with datasets of tensors on a higher level abstraction. It includes Einstein and Riemann summing conventions, dragging, co- and contravariate indices, parallel computations on sequences of tensors.

## Functions in tensorA

 Name Description margin.tensor Marginalization of tensors svd.tensor Singular value decomposition of tensors tensorA-package The tensorA package for tensor arithmetic bind.tensor A cbind/rbind for tensors chol.tensor Cholesky decomposition of a tensor norm.tensor Calculate the Euclidean norm or Euclidean operator norm of a tensor or its subtensors one.tensor Creates a tensor with all entries 1 slice.tensor Working with the indices of a tensor (accessing, slicing, renaming, ...) solve.tensor Solving linear equations with tensors delta.tensor Creates a Kronecker delta tensor diagmul.tensor Multiplication of a tensor with a tensor given by its diagonal mark.tensor Marks the names of a tensor with a mark mean.tensor Mean and variance of tensors diag.tensor Creates a "diagonal" tensor drag.tensor Managing covariate and contravariate indices tripledelta.tensor A tensor with entry 1 if and only if three indices are equal pos.tensor enumeration of index combinations undrop.tensor Adds a spurious dimension to a tensor power.tensor Compute the power of a symmetric tensor mul.tensor Tensor multiplication for the tensor class names.tensor Getting and setting index and dimensionnames of a tensor add.tensor Element-wise arithmetic operations +,-,*,/ with tensors reorder.tensor Permutation of indices and storage sequence of a tensor untensor Removes indices/dimensions from a tensor as.tensor Coercion to a tensor reptensor Repeats a tensor to.tensor Creates a tensor object inv.tensor Inversion of a tensor as linear mapping from tensors to tensors is.tensor Checking for being a tensor riemann.tensor Tensor multiplication with Riemann's convention sequencing Working with index sequences toPos.tensor get the position of an index of tensor to.matrix.tensor The matrix corresponding to a tensor seen as a linear mapping of tensors. trace.tensor Collapse a tensor ftable.tensor Pretty printing of tensors einstein.tensor Tensor multiplication with Einstein's convention, by summing over all equally named indices. level.tensor The level (number of indices) of a tensor No Results!