NT2 alternatives and similar libraries

Based on the "Math" category.
Alternatively, view NT2 alternatives based on common mentions on social networks and blogs.

GLM

9.1 9.0 L1 NT2 VS GLM

OpenGL Mathematics (GLM)
OpenBLAS

8.6 9.8 NT2 VS OpenBLAS

OpenBLAS is an optimized BLAS library based on GotoBLAS2 1.13 BSD version.

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QuantLib

8.6 9.8 L1 NT2 VS QuantLib

The QuantLib C++ library
CGal

8.4 9.9 L1 NT2 VS CGal

The public CGAL repository, see the README below
ceres-solver

8.0 8.3 L1 NT2 VS ceres-solver

A large scale non-linear optimization library
Eigen

7.1 - NT2 VS Eigen

A high-level C++ library of template headers for linear algebra, matrix and vector operations, numerical solvers and related algorithms. [MPL2]
TinyExpr

6.2 2.9 L4 NT2 VS TinyExpr

tiny recursive descent expression parser, compiler, and evaluation engine for math expressions
Vc

5.9 6.1 L1 NT2 VS Vc

SIMD Vector Classes for C++
linmath.h

5.2 0.0 NT2 VS linmath.h

a lean linear math library, aimed at graphics programming. Supports vec3, vec4, mat4x4 and quaternions
ExprTK

5.1 0.0 L1 NT2 VS ExprTK

C++ Mathematical Expression Parsing And Evaluation Library https://www.partow.net/programming/exprtk/index.html
MIRACL

5.1 0.0 L1 NT2 VS MIRACL

MIRACL Cryptographic SDK: Multiprecision Integer and Rational Arithmetic Cryptographic Library is a C software library that is widely regarded by developers as the gold standard open source SDK for elliptic curve cryptography (ECC).
LibTomMath

5.0 6.8 L2 NT2 VS LibTomMath

LibTomMath is a free open source portable number theoretic multiple-precision integer library written entirely in C.
Klein

4.6 0.0 NT2 VS Klein

P(R*_{3, 0, 1}) specialized SIMD Geometric Algebra Library
muparser

4.1 6.7 L1 NT2 VS muparser

muparser is a fast math parser library for C/C++ with (optional) OpenMP support.
HLSL++

3.7 7.7 NT2 VS HLSL++

Math library using hlsl syntax with SSE/NEON support
GMTL

3.7 0.0 L1 NT2 VS GMTL

Generic Math Template Library (forked from http://ggt.sourceforge.net/)
Boost.Multiprecision

3.5 8.1 L1 NT2 VS Boost.Multiprecision

Boost.Multiprecision
safe_numerics

3.2 0.0 NT2 VS safe_numerics

Replacements to standard numeric types which throw exceptions on errors
Apophenia

3.1 0.0 L2 NT2 VS Apophenia

A C library for statistical and scientific computing
blaze

3.1 - NT2 VS blaze

high-performance C++ math library for dense and sparse arithmetic. [BSD]
Wykobi

3.0 0.0 NT2 VS Wykobi

Wykobi C++ Computational Geometry Library https://www.wykobi.com
Versor

1.7 0.0 NT2 VS Versor

[older version] Versor 1.0 C++ library for conformal geometric algebra draw routines
metamath

1.6 0.0 NT2 VS metamath

Meta mathematics. Symbolic functions and derivatives.
Xerus

1.5 0.0 NT2 VS Xerus

A general purpose library for numerical calculations with higher order tensors, Tensor-Train Decompositions / Matrix Product States and other Tensor Networks
SLIMCPP

1.5 2.9 NT2 VS SLIMCPP

Simple Long Integer Math for C++. Lightweight cross-platform header-only library what implements big integer arithmetic in С++17.
Mission : Impossible (AutoDiff)

1.3 0.0 NT2 VS Mission : Impossible (AutoDiff)

A concise C++17 implementation of automatic differentiation (operator overloading)
ceval

1.2 0.0 NT2 VS ceval

A C/C++ library for parsing and evaluation of arithmetic expressions.
macadam

0.9 0.0 NT2 VS macadam

Numerical library. Complete BLAS. Hybrid cpp98/cpp11 c99/c11
GMP

- NT2 VS GMP

A C/C++ library for arbitrary precision arithmetic, operating on signed integers, rational numbers, and floating-point numbers. [LGPL3 & GPL2]
Armadillo

- NT2 VS Armadillo

A high quality C++ linear algebra library, aiming towards a good balance between speed and ease of use. The syntax (API) is deliberately similar to Matlab. [MPL2]