- 微积分 wēijīfēn calculusthe branch of mathematics that deals with the finding and properties of derivatives and integrals of functions, based on the summation of infinitesimal differences
- 积分学 jīfēnxué integral calculus
- 微积分学 wēijīfēnxué calculusthe mathematical study of continuous change, encompassing differential and integral calculus
- 积分方程 jīfēnfāngchéng integral equationintegral equation (mathematics)
- 不定积分 bùdìngjīfēn indefinite integralindefinite integral (math.)
- 积分榜 jīfēnbǎng leaderboardtable of scores (in exams or sports league)
- 椭圆积分 tuǒyuánjīfēn elliptic integral(math.) elliptic integral
- 积分变换 jīfēnbiànhuàn integral transformintegral transform in mathematics
- 积分常数 jīfēnchángshù integration constantconstant of integration (math.)
