(n) a method of fitting a curve to data points so as to minimize the sum of the squares of the distances of the points from the curve, Syn. method of least squares
[nankuro] (n) (abbr) (See ナンバークロス) number crossword (var. of kanji crossword puzzle with numbers where squares with the same number contain the same kanji)
[へいだん;へいたん;べいだん, heidan ; heitan ; beidan] (n) type of pastry of the Heian period made of duck or goose eggs mixed with vegetables boiled and wrapped in mochi which is then cut into squares