蚌埠学院学报
蚌埠學院學報
방부학원학보
JOURNAL OF BENGBU COLLEGE
2015年
4期
29-31,35
,共4页
连分式逼近%多项式逼近%Maclaurin级数%近似计算
連分式逼近%多項式逼近%Maclaurin級數%近似計算
련분식핍근%다항식핍근%Maclaurin급수%근사계산
continued fraction approximation%the polynomial approximation%Maclaurin series%approxi-mate calculation
从多方面观察和比较连分式逼近与多项式逼近的近似计算效果,首先利用连分式与Maclaurin级数逼近无理数,其次考虑了对函数的逼近。通过数值实例的比较,由此可以看出连分式逼近相对多项式的逼近具有收敛速度快、计算精度高以及收敛域广等特点。连分式与多项式级数是两个经典的逼近函数的工具,在数值计算中有着重要作用。
從多方麵觀察和比較連分式逼近與多項式逼近的近似計算效果,首先利用連分式與Maclaurin級數逼近無理數,其次攷慮瞭對函數的逼近。通過數值實例的比較,由此可以看齣連分式逼近相對多項式的逼近具有收斂速度快、計算精度高以及收斂域廣等特點。連分式與多項式級數是兩箇經典的逼近函數的工具,在數值計算中有著重要作用。
종다방면관찰화비교련분식핍근여다항식핍근적근사계산효과,수선이용련분식여Maclaurin급수핍근무리수,기차고필료대함수적핍근。통과수치실례적비교,유차가이간출련분식핍근상대다항식적핍근구유수렴속도쾌、계산정도고이급수렴역엄등특점。련분식여다항식급수시량개경전적핍근함수적공구,재수치계산중유착중요작용。
It is observed and analyzed on the effect of approximate calculation of continued fraction ap-proximation and polynomial approximation in many ways in this paper .An irrational number was approxi-mated by using continued fraction approximation and Maclaurin series at first .Then approximating a func-tion was taken into account .Through comparisons of numerical results , continued fraction approximation has excellences of rapid convergence ,high precision ,large convergent domain and so on in contrast to pol-ynomial approximation .Continued fraction approximation and polynomial approximation are two classic tools for approximating function and play an important role in numerical calculation .