Matrix Regedit //top\\ Guide

"rows": 3, "cols": 3, "data": [[1,2,3],[4,5,6],[7,8,9]]

HKEY_LOCAL_MACHINE\SOFTWARE\CompanyName\Product\Matrices ├── TransformMatrix │ Type = REG_SZ "binary" │ Data = REG_BINARY ... ├── LookupTable_3x4 │ Type = REG_SZ "json" │ Data = REG_SZ "..." └── UserPrefMatrix rows = REG_DWORD 5 cols = REG_DWORD 5 data_0_0 = REG_DWORD 1 ... | Method | Read Speed | Write Speed | Memory Overhead | Max Practical Size | |--------|------------|-------------|-----------------|--------------------| | Binary | Very fast | Fast | Low | ~1 MB (registry limit) | | JSON | Medium | Medium | Medium | 64 KB (REG_SZ limit) | | Row-per-key | Slow (many lookups) | Slow | High | Hundreds of keys | matrix regedit

Write-Host "Matrix ($rowsRead x $colsRead): $matrix" #include <windows.h> #include <vector> #include <cstdint> void WriteBinaryMatrix(HKEY root, LPCWSTR subkey, LPCWSTR valueName, const std::vector<float>& data, uint32_t rows, uint32_t cols) HKEY hKey; RegCreateKeyExW(root, subkey, 0, NULL, REG_OPTION_NON_VOLATILE, KEY_SET_VALUE, NULL, &hKey, NULL); For most matrix applications, (compact, fast) or REG_SZ

Value: 02 00 00 00 03 00 00 00 00 00 80 3F 00 00 00 40 00 00 40 40 00 00 80 40 00 00 A0 40 00 00 C0 40 Interpretation: - rows = 2 (little-endian) - cols = 3 - data = [1.0, 2.0, 3.0, 4.0, 5.0, 6.0] as float32 Store matrix as JSON string in REG_SZ . For most matrix applications

For most matrix applications, (compact, fast) or REG_SZ with JSON (human-readable, flexible) is preferred. 3. Encoding Matrices in the Registry 3.1 Binary Encoding (Fixed-Size Numeric Matrix) Store matrix dimensions (rows, cols) and element values in a single REG_BINARY value.