https://bluuewhale.github.io/tags/linear-algebra/Recent content in Linear Algebra on Bluue Whalehttps://bluuewhale.github.io/images/profile.jpghttps://bluuewhale.github.io/images/profile.jpgHugo -- 0.152.2en-usSat, 22 Aug 2026 22:21:36 +0900https://bluuewhale.github.io/posts/sparse-matrix-and-csr-en/Wed, 01 Apr 2026 16:23:49 +0900https://bluuewhale.github.io/posts/sparse-matrix-and-csr-en/How CSR (Compressed Sparse Row) represents a sparse matrix with just three arrays, values, column_indices, and row_pointers, and why it speeds up sparse matrix-vector multiplication and graph neighbor lookups.