Module refactor

1 files changed, 0 insertions, 39 deletions

diff --git a/include/qr.hpp b/include/qr.hpp
deleted file mode 100644
index c9e1638..0000000
--- a/include/qr.hpp
+++ /dev/null
@@ -1,39 +0,0 @@
-#pragma once
-
-#include "matrix.hpp"
-#include "vector.hpp"
-
-namespace linalg {
-
-struct QRResult {
-    Matrix Q;
-    Matrix R;
-};
-
-// Classical Gram-Schmidt.
-// Mathematically natural but numerically fragile: orthogonality of Q
-// degrades rapidly on ill-conditioned inputs.
-// Provided for comparison — prefer modified_gs or householder in practice.
-//
-// Throws DimensionMismatchError if rows < cols.
-// Throws SingularMatrixError   if a column is (nearly) linearly dependent.
-QRResult qr_classical_gs(const Matrix& A, double zero_tolerance = 1e-14);
-
-// Modified Gram-Schmidt.
-// Subtracts each projection immediately on the running vector rather than
-// on the original column.  Algebraically equivalent to classical GS but
-// numerically much better — round-off stays local instead of accumulating.
-//
-// Same exceptions as classical GS.
-QRResult qr_modified_gs(const Matrix& A, double zero_tolerance = 1e-14);
-
-// Householder QR.
-// Applies a sequence of orthogonal reflections to zero out below-diagonal
-// entries column by column.  Backward-stable and the standard choice for
-// dense QR.  Works correctly on rank-deficient matrices (zero pivots
-// produce zero diagonal entries in R without throwing).
-//
-// Throws DimensionMismatchError if rows < cols.
-QRResult qr_householder(const Matrix& A);
-
-}  // namespace linalg