跡せきせき○じ字FuriganaAudioMeanings1nountracemathematics›Mathematical term for the sum of the diagonal elements of a square matrix.行ぎょう列れつの跡せきは、対たい角かく成せい分ぶんの和わとして定てい義ぎされる。Break this sentence down in the analyzerThe trace of a matrix is defined as the sum of its diagonal elements.See all 12 example sentences ›Expressions悔かい悛しゅんの秘ひ跡せきsacrament of penance and reconciliationゆるしの秘ひ跡せきSacrament of Penance and Reconciliation