fix(math): preserve certified sums and complete MKL algebra

2026-10-14 15:40:52 +09:00
parent 59c8e93b07
commit 590a93793f
9 changed files with 236 additions and 95 deletions
@@ -211,6 +211,10 @@ Vector SparseMatrix::Multiply(const Vector& rhs) const {
  if (!Validate().IsOk()) {
    throw std::invalid_argument{"Sparse multiplication requires valid CSR."};
  }
+  for (std::size_t i = 0; i < rhs.Size(); ++i) {
+    if (!std::isfinite(rhs[i]))
+      throw std::invalid_argument{"Sparse multiplication RHS must be finite."};
+  }
  const MKL_INT rows = SparseSize(rows_);
  const MKL_INT columns = SparseSize(columns_);
  static_cast<void>(SparseSize(values_.size()));