000  $anz n  2
000  $a주제어
001  $aKSH1998013794
005  $a20000213042930
008  $a980429 n azknnaabn          |a a|a    | 
150  $a대칭 행렬[對稱行列]
450  $wr$i영어$asymmetric matrix
550  $wg$a행렬(수학)[行列]