hTensor alternatives and similar packages
Based on the "Math" category.
Alternatively, view hTensor alternatives based on common mentions on social networks and blogs.

vector
An efficient implementation of Intindexed arrays (both mutable and immutable), with a powerful loop optimisation framework . 
statistics
A fast, high quality library for computing with statistics in Haskell. 
HerbiePlugin
GHC plugin that improves Haskell code's numerical stability 
hgeometry
HGeometry is a library for computing with geometric objects in Haskell. It defines basic geometric types and primitives, and it implements some geometric data structures and algorithms. The main two focusses are: (1) Strong type safety, and (2) implementations of geometric algorithms and data structures that have good asymptotic running time guarantees. 
dimensional
Dimensional library variant built on Data Kinds, Closed Type Families, TypeNats (GHC 7.8+). 
computationalalgebra
GeneralPurpose Computer Algebra System as an EDSL in Haskell 
mwcrandom
A very fast Haskell library for generating high quality pseudorandom numbers. 
numhask
A haskell numeric prelude, providing a clean structure for numbers and operations that combine them. 
cf
"Exact" real arithmetic for Haskell using continued fractions (Not formally proven correct) 
poly
Fast polynomial arithmetic in Haskell (dense and sparse, univariate and multivariate, usual and Laurent) 
optimization
Some numerical optimization methods implemented in Haskell 
safedecimal
Safe and very efficient arithmetic operations on fixed decimal point numbers 
equationalreasoning
Agdastyle equational reasoning in Haskell 
eigen
Haskel binding for Eigen library. Eigen is a C++ template library for linear algebra: matrices, vectors, numerical solvers, and related algorithms. 
polynomial
Haskell library for manipulating and evaluating polynomials 
monoidsubclasses
Subclasses of Monoid with a solid theoretical foundation and practical purposes 
vectorthunbox
Deriver for unboxed vectors using Template Haskell
TestGPT  Generating meaningful tests for busy devs
* Code Quality Rankings and insights are calculated and provided by Lumnify.
They vary from L1 to L5 with "L5" being the highest.
Do you think we are missing an alternative of hTensor or a related project?
Popular Comparisons
README
hTensor
A Haskell package for multidimensional arrays, simple tensor computations and multilinear algebra.
Array dimensions have an "identity" which is preserved in data manipulation. Indices are explicitly selected by name in expressions, and Einstein's summation convention for repeated indices is automatically applied.
The library has a purely functional interface: arrays are immutable, and operations work on whole structures which can be assembled and decomposed using simple primitives. Arguments are automatically made conformable by replicating them along extra dimensions appearing in an operation.
There is preliminary support for geometric algebra, multidimensional linear systems of equations, and tensor decompositions.
Application to Multiview Geometry:
 part 1: tensor diagrams
 part 2: (in construction)
Installation
$ sudo aptget install haskellplatform libgsl0dev liblapackdev
$ cabal update
$ cabal install hTensor
Test
$ ghci
> import Numeric.LinearAlgebra.Exterior
> printA "%4.0f" $ leviCivita 4 !"pqrs" * cov (leviCivita 4)!"qrsu"
p^4 x u_4
u
6 0 0 0
p 0 6 0 0
0 0 6 0
0 0 0 6