不定積分: antiderivative, indefinite integral

定積分: definite integral

the greater part, the most part, large part

calculation / forecast

to calculate

隻: boats / 石: (slang) transistors

堰: weir, embankment / 咳: cough / 関: frontier pass, close, relation / 席: seat, mat, banquet / 積: accumulate, store up, amass / 籍: record, register, list, census / 舎: house, dwelling, dwell, reside

関: Seki (a city in Gifu Prefecture, Japan); a surname

one part

(statistics) meta-analysis