文件名称:mathvalue_1
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从人口普查统计，已知某国新生儿母亲的年龄累计分布为N=N(t)，其中t为母亲年龄，N为新生儿的母亲年龄低于或等于t的新生儿数目。下表给出了间距为5的数据。
t 15 20 25 30 35 40 45 50
N 0 7442 26703 41635 49785 50209 50226 50230
取边界条件为N’(15)=N’(50)=0,利用三次样条插值求出15至50岁之间，每一年龄（即x=15,16,……，50）所对应的新生儿累计数目N，并绘出插值函数的图形。
-From the census statistics, a country known to the mother s age newborn cumulative distribution for N = N (t), one of t for the age of the mother, N for the newborn s mother, age less than or equal to t the number of newborns. The following table gives the distance of 5 data. t 15 20 25 30 35 40 45 50N 0 7442 26703 41635 49785 50209 50226 50230 check the boundary conditions for the N (15) = N (50) = 0, using cubic spline interpolation is obtained between the ages of 15-50, each age (that is, x = 15,16, ... ..., 50) corresponding to the number of newborns accumulated N, and mapped graphics interpolation function.
t 15 20 25 30 35 40 45 50
N 0 7442 26703 41635 49785 50209 50226 50230
取边界条件为N’(15)=N’(50)=0,利用三次样条插值求出15至50岁之间，每一年龄（即x=15,16,……，50）所对应的新生儿累计数目N，并绘出插值函数的图形。
-From the census statistics, a country known to the mother s age newborn cumulative distribution for N = N (t), one of t for the age of the mother, N for the newborn s mother, age less than or equal to t the number of newborns. The following table gives the distance of 5 data. t 15 20 25 30 35 40 45 50N 0 7442 26703 41635 49785 50209 50226 50230 check the boundary conditions for the N (15) = N (50) = 0, using cubic spline interpolation is obtained between the ages of 15-50, each age (that is, x = 15,16, ... ..., 50) corresponding to the number of newborns accumulated N, and mapped graphics interpolation function.
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