diff --git a/Sheet5/bench_funcs.h b/Sheet5/bench_funcs.h
deleted file mode 100644
index 6378d53..0000000
--- a/Sheet5/bench_funcs.h
+++ /dev/null
@@ -1,29 +0,0 @@
-#pragma once
-#include <vector>
-#include <cstddef>
-
-// scalar and vector operations
-double sum_basic(const std::vector<double>& x);               // A) parallel sum
-double dot_basic(const std::vector<double>& x, const std::vector<double>& y); // A) inner product
-double dot_kahan(const std::vector<double>& x, const std::vector<double>& y);
-double norm_basic(const std::vector<double>& x);
-
-// matrix-vector, matrix-matrix, polynomial
-void matvec_rowmajor(const std::vector<double>& A, std::size_t M, std::size_t N,
-                     const std::vector<double>& x, std::vector<double>& b);
-
-void matmul_rowmajor(const std::vector<double>& A, std::size_t M, std::size_t L,
-                     const std::vector<double>& B, std::size_t N,
-                     std::vector<double>& C);
-
-void polyp_horner(const std::vector<double>& a, const std::vector<double>& x,
-                  std::vector<double>& y);
-
-struct CSR {
-    std::size_t n;
-    std::vector<double> val;
-    std::vector<std::size_t> col;
-    std::vector<std::size_t> row_ptr;
-};
-void jacobi_csr(const CSR& K, const std::vector<double>& f, std::vector<double>& u,
-                std::size_t max_iter, double omega, double tol);