LU and LU inverse is done

2025-09-14 18:35:37 +02:00
parent 88087ea6a6
commit 92437e5ef1
23 changed files with 503 additions and 978 deletions
@@ -45,7 +45,7 @@ public:
 		    return !(*this == A);
 		}
 		bool nearly_equal(const Matrix<T>& A, T tol = static_cast<T>(1e-9)) const {
-		    if (rows_ != A.rows_ || cols_ != A.cols_) return false;
+		    if (rows_ != A.rows() || cols_ != A.cols()) return false;
 		    for (uint64_t i = 0; i < rows_; ++i)
 		        for (uint64_t j = 0; j < cols_; ++j) {
 		            T a = (*this)(i,j);
@@ -59,6 +59,22 @@ public:
 		    return true;
 		}

+		void eye(uint64_t rows_cols){
+			rows_ = cols_ = rows_cols;
+
+			data_.clear();
+			data_.resize(rows_cols*rows_cols, T{0});
+			for (uint64_t i = 0; i < rows_; ++i){
+				data_[i * cols_ + i] = T{1};
+			}
+		}
+
+		void resize(uint64_t rows, uint64_t cols, const T& value = T(0)){
+			rows_ = rows;
+			cols_ = cols;
+			data_.resize(rows_*cols_, value);
+
+		}


 		//#            MATRIX: row helpers (copy out)            #