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Description: 1.n个节点分段Lagrange插值多项式；
2.使用格式y=lagrange(x0,y0,x,k)；
3.输入项x0为n维插值节点向量，y0为n维被插函数值向量；
4.x为m维插值点向量，k为分段插值多项式次数，不超过3，缺省为k=1；
5.输出y为插值点x处的函数值；- 1.n a sub-node Lagrange interpolation polynomial 2. The use of the format y = lagrange (x0, y0, x, k) 3. Input x0 of interpolation nodes for the n-dimensional vector, y0 for n-dimensional vector function to be inserted 4.x interpolation points for the m-dimensional vector, k is the number of sub-polynomial interpolation, not more than 3, the default for k = 1 5. output y for the interpolation points x Department of function
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Description: （1）用Doolittle三角分解（LU）法解方程组。
（2）分别用Jacobi迭代, Gauss-Seidel迭代法解方程组。
-(1) Triangle Doolittle decomposition (LU) Solving equations. (2), respectively, with Jacobi iteration, Gauss-Seidel iteration method for solution of equations.
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Author: 娜娜 |
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