polynomialinterpolation.java

来自「数值计算（科学计算）实验代码高斯消元楚列斯基分解」· Java 代码 · 共 26 行

public class PolynomialInterpolation {
	public double PolynomialInterpolation (double[] a,double[] b,int n,double t)
	{   
		double[][] tt=new double[n][n];
		double[] y=new double[n];
		double result=0;
		for(int r=0;r<0;r++)
		tt[r][0]=1;
		for(int i=0;i<n;i++)
		{
			for(int j=1;j<n;j++)
				tt[i][j]=(double)tt[i][j-1]*a[i];	
		}
		Gaussian rrr=new Gaussian();
		double[] x=rrr.Gaussian(tt, b, n);
		double[] tValue=new double[n];
		tValue[0]=1;
		for(int j=1;j<n;j++)
			tValue[j]=tValue[j-1]*t;
		for(int i=0;i<n;i++)
			result=result+tValue[i]*x[i];	
		return result;
	}
}