Mathematical term for the sum of the diagonal elements of a square matrix.
The trace of a matrix is defined as the sum of its diagonal elements.
chase; pursuit; tracking · following up; tracing
trace; vestige; mark; sign; evidence
tire track; wheel track · traces; path taken; record of a course · locus
trace; sign; evidence
historic site; historic landmark; historic remains
handwriting; penmanship · calligraphy specimen; holograph; example of penmanship
wake; track left by a ship or aircraft · flight path; track of an aircraft
holy site; sacred place
standard move; established pattern
head priest of a temple formerly led by a sect founder; temple where a noble or imperial family member resided; head priest of Honganji
old battlefield; historic battle site
sacrament
famous historic spot; place of historic interest · family name; professional name
historic site; place of historical interest
proof; evidence; trace
trace; vestige; evidence
signs of human habitation; human traces
Buddhist sacred site; place sacred to Buddhism
great achievements; remaining works of a great person
light trail; trace of moving light
results of rebellion; traces of insurrection
historic site; historic spot; historic remains
family name; professional name
calligraphy; penmanship; writing (esp. of a Zen monk)
absconding; disappearance; vanishing
The reading せき is a Sino-Japanese reading of the kanji 跡, which generally means 'trace' or 'mark'. The mathematical sense is a direct translation of the English term 'trace'.