b'\n_START_ARTICLE_\nVien\xc4\xabbas matrica\n_START_PARAGRAPH_\nPar vien\xc4\xabbas matricu ar k\xc4\x81rtu n sauc t\xc4\x81du n\\times n kvadr\xc4\x81tveida matricu, kurai visi galven\xc4\x81s diagon\xc4\x81les elementi ir 1, bet p\xc4\x81r\xc4\x93jie ir 0. Parasti vien\xc4\xabbas matricu apz\xc4\xabm\xc4\x93 ar I vai ar\xc4\xab E.\n_START_SECTION_\nPiem\xc4\x93ri\n_START_PARAGRAPH_\n1. k\xc4\x81rtas vien\xc4\xabbas matrica ir_NEWLINE_ I = \\begin{pmatrix} 1 \\end{pmatrix} _NEWLINE_2. k\xc4\x81rtas vien\xc4\xabbas matrica ir_NEWLINE_ I = \\begin{pmatrix} 1 & 0 \\\\_NEWLINE_0 & 1_NEWLINE_\\end{pmatrix} _NEWLINE_3. k\xc4\x81rtas vien\xc4\xabbas matrica ir_NEWLINE_ I = \\begin{pmatrix} 1 & 0 & 0 \\\\_NEWLINE_0 & 1 & 0 \\\\ 0 & 0 & 1_NEWLINE_\\end{pmatrix} _NEWLINE_utt.'