单词	numerical analysis
释义	Numerical Analysis The study of how to get approximate answers by using lots of simple calculations. Used when direct perfect answers are hard. Example: to find an area under a curve we can add up little rectangles. Very useful in Engineering and Science when dealing with real world situations. Example: to find how water flows through a whole town's pipe network (pipes of different sizes and lengths, pumping stations, hills, valleys, etc) a computer can calculate approximate flows, then calculate new pressures, which alter the flows, then run it all again with the new flows, pressures, etc until it all balances out.
随便看	parameter parametric equations parentheses parity parity bit partial derivative partial product pascals triangle pattern payroll deduction pentagon pentagonal number pentagram pentahedron pentomino percent percentage points percentile rank perfect number perfect square perimeter period periodic function permutation perpendicular

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