The first project in my C++ Repo.
Hope not the last :)
Simple Linear Algebra lib to work with numeric vectors, matrices, systems of equations and so on
Project's aim — • repeat some linear algebra topics, • code them, • try practicing (modern) C++, • start using tests ( Google tests) and • CMake, • maybe even GitHub Actions. Here for the first time using CMake myself and Gtests

1. cd Tester
2. cmake -S . -B build -G "MinGW Makefiles" // or your generator
3. cmake --build build
4. cd build && ctest
5. In JetBrains Clion it is possible to choose main CMakeLists.txt (so it's necessary to choose one from Tester folder) — and it will be possible to run tests automatically by ctrl + F5 or Run button. Also it will be necessary to choose All CTest | Debug in select of configuration

1. cd Library
2. cmake . -B build -G "MinGW Makefiles" // or your generator
3. cmake --build build

• Vector class
  • Template
  • Copy constructor and = operator
  • Operators
  • Ostream operator
  • Norm
  • Normalization
  • × Convert / Transform (with lambda as argument)
  • Sum
  • Friend class for Matrix class
  • Cast to Matrix
• Matrix class (can also represent Vector)
  • Operators (via already realized Vector's ones)
  • Ostream operator
  • Multiplication // native
    • Pow
  • Determinant
  • Transposing
  • Triangulation (Gauss-method, Upper)
  • Identity (Unit) matrix
  • Extracting submatrix for minor
  • Minor
    • Cofactor
  • Is symmetric
  • Track (Spur)
  • Rank
  • × Norm (?)
  • Inverse matrix
  • Cast to Vector (if 1 row)
• Equations systems solvers class
  • Gauss
  • × Jacobi
  • × Simple iterations // COMING SOON
  • × Zeidel // COMING SOON
  • Cramer
  • By inverse matrix
• CMake
• Tests:
  • × Connect to CodeCov
  • Test with Google tests (gtest CMake tutorial)
  • Or at least start testing with assert.h (cassert)
  • × Bage with tests in Readme.md
• GitHub Actions (— for what ? — don't know yet, but may be useful) // just running gtest on server
• Modern C++ 17 features, which are new for me
  • Initialization with curly brackets with auto type
  • Automatic output of the received template class type, example: Vector(5, 6) => Vector(5, 6)
  • Unpacking structures ?
  • Limiting the scope of variables in if, for, switch ?
  • constexpr-if ?

• Template classes
• Google C++ code style (style guide)
• Modern features: STD functions, auto lambda expressions, constexpr and so on
• Google Tests, hundreds of code-lines with tests
• CMake-s for tests and for building a lib