All tasks are placed on the portal of my university.

Briefly, the task was to solve systems using special methods:

• Gauss with main element selection
• LDLt factorization for symmetric matrices Also inconsistency and absolute error were calculated here.

• Cmake minimal version required for Google Test is currenty 3.24.2
• C++20 version (Only STL)
• Windows 11 (uint64_t was used for sizes)

Just use cmake and select CMakeLists.txt in root directory:

mkdir GaussBuild
cd GaussBuild
cmake ..
cmake --build

• Clion 2022.2 (Official Pro)
• Valgrind memcheck for debugging
• Perf-linux profiler on Kali WSL

SYM-ILDL: Incomplete LDLT Factorization of Symmetric Indefinite and Skew-Symmetric Matrices