differential and integral calculus

例句：

1. 1. Thedifference in temperature between the two places issignificant.
   两地之间的温差是显著的。
2. 2. Thecompany's financial performance has shown asignificant difference from last year.
   该公司的财务表现与去年相比有显著差异。
3. 3. Thedifference in gravitational force betweenthe two objects is what determines theirseparation.
   两个物体之间引力的差异决定了它们之间的距离。
4. 1. The integral of thefunction is 10.
   函数的积分是10。
5. 2. The integral of the areaunder the curve is π*r^2.
   曲线下的面积积分是π*r^2。
6. 3. The integral of thefunction over the interval [a, b] is equal to the definite integral off(x) from a to b.
   函数在区间[a,b]上的积分等于f(x)从a到b的定积分。