act 11 luis fernando valdez p. | C# Online Compiler

act 11 luis fernando valdez p. by fervaldez

using System;

class Program
{
    public static double[] SolEcLin(double[,] matriz)
    {
        int n = matriz.GetLength(0); 
		int m = matriz.GetLength(1); 
        
		for (int paso = 0; paso < n; paso++)
        {
            double noCero = matriz[paso, paso];
			int noCeroFila = paso;
            for (int fila = paso; fila < n; fila++)
            {
                if (matriz[fila, paso] != 0)
                {
                    noCero = matriz[fila, paso];
                    noCeroFila = fila;
					break;
                }
            }

            // intercambio de filas
            for (int col = paso; col < m; col++)
            {
                double tmp; 
				tmp = matriz[noCeroFila, col];
                matriz[noCeroFila, col] = matriz[paso, col]; 
                matriz[paso, col] = tmp; 
            }
	
			for (int col = paso; col < m; col++)
            {
				
				matriz[paso,col] /= noCero;
            }

            for (int fila = 0; fila < n; fila++)
            {
                double c = -matriz[fila, paso]; 
                for (int col = paso; col < m; col++)
                {
                    if (fila != paso)
                    {
                        matriz[fila, col] += c * matriz[paso, col];
                    }
                }
            }
        }

        double[] solucion = new double[n];
        for (int i = 0; i < n; i++)
        {
        	solucion[i] = matriz[i, m-1];
        }
        return solucion;
    }
	
	static public double f(int i, double x)
	{
		switch(i){
			case 0:
				return Math.Sin(x);
				break;
			case 1:
				return Math.Exp(x/5);
				break;
			case 2:
				return 1;
				break;
			default:
				return 0;
				break;
		}
	}

    static void Main(string[] args)
    {
        double[] X = {-5.94, -3.89, -3.56, -1.49, -2.01, -1.0, 1.07, 0.77, 2.86, 3.69, 3.81, 3.73, 6.12, 6.44, 6.61, 7.0, 8.2, 9.83, 11.33, 11.5, 11.49, 13.16, 14.44, 15.32, 16.67, 17.52, 16.5, 18.3, 19.01, 19.77};
		double[] Y = {4.34, 5.61, 5.06, 0.59, 0.98, 1.29, 6.01, 5.47, 5.3, 3.47, 3.46, 2.21, 3.33, 5.08, 4.92, 5.68, 7.86, 4.46, 4.1, 5.48, 5.53, 10.41, 12.85, 13.43, 12.77, 14.6, 13.15, 17.68, 23.28, 26.68};
		int cantDat = X.GetLength(0);
		
		double[,] matriz = new double[3,4];
		
		
		for(int fila=0; fila<3; fila++){
		for(int columna=0; columna<3; columna++)
		{
			matriz[fila,columna] = 0;
			for(int k=0; k<cantDat; k++)
			{
				matriz[fila,columna] += f(fila,X[k])*f(columna,X[k]);
			}
		}}
		
		for(int fila=0; fila<3; fila++)
		{
			matriz[fila,3] = 0;
			for(int k=0; k<cantDat; k++)
			{
				matriz[fila,3] += f(fila,X[k])*Y[k];
			}
		}
		
		double[] solucion = SolEcLin(matriz);
		Console.WriteLine("------------------------------------------");
		Console.WriteLine("Punto A = " + solucion[0]);
		Console.WriteLine("Punto B = " + solucion[1]);
		Console.WriteLine("Punto C = " + solucion[2]);
		Console.WriteLine("------------------------------------------");
		
    }
}

​x
 
using System;
​
class Program
{
    public static double[] SolEcLin(double[,] matriz)
    {
        int n = matriz.GetLength(0); 
        int m = matriz.GetLength(1); 
        
        for (int paso = 0; paso < n; paso++)
        {
            double noCero = matriz[paso, paso];
            int noCeroFila = paso;
            for (int fila = paso; fila < n; fila++)
            {
                if (matriz[fila, paso] != 0)
                {
                    noCero = matriz[fila, paso];
                    noCeroFila = fila;
                    break;
                }
            }
​
            // intercambio de filas
            for (int col = paso; col < m; col++)
            {
                double tmp; 
                tmp = matriz[noCeroFila, col];
                matriz[noCeroFila, col] = matriz[paso, col]; 
                matriz[paso, col] = tmp; 
            }
    
            for (int col = paso; col < m; col++)
            {
                
                matriz[paso,col] /= noCero;
            }
​
            for (int fila = 0; fila < n; fila++)
            {
                double c = -matriz[fila, paso]; 
                for (int col = paso; col < m; col++)
                {
                    if (fila != paso)
                    {
                        matriz[fila, col] += c * matriz[paso, col];
                    }
                }
            }
        }
​
        double[] solucion = new double[n];
        for (int i = 0; i < n; i++)
        {
            solucion[i] = matriz[i, m-1];
        }
        return solucion;
    }
    
    static public double f(int i, double x)
    {
        switch(i){
            case 0:
                return Math.Sin(x);
                break;
            case 1:
                return Math.Exp(x/5);
                break;
            case 2:
                return 1;
                break;
            default:
                return 0;
                break;
        }
    }
​
    static void Main(string[] args)
    {
        double[] X = {-5.94, -3.89, -3.56, -1.49, -2.01, -1.0, 1.07, 0.77, 2.86, 3.69, 3.81, 3.73, 6.12, 6.44, 6.61, 7.0, 8.2, 9.83, 11.33, 11.5, 11.49, 13.16, 14.44, 15.32, 16.67, 17.52, 16.5, 18.3, 19.01, 19.77};
        double[] Y = {4.34, 5.61, 5.06, 0.59, 0.98, 1.29, 6.01, 5.47, 5.3, 3.47, 3.46, 2.21, 3.33, 5.08, 4.92, 5.68, 7.86, 4.46, 4.1, 5.48, 5.53, 10.41, 12.85, 13.43, 12.77, 14.6, 13.15, 17.68, 23.28, 26.68};
        int cantDat = X.GetLength(0);
        
        double[,] matriz = new double[3,4];
        
        
        for(int fila=0; fila<3; fila++){
        for(int columna=0; columna<3; columna++)
        {
            matriz[fila,columna] = 0;
            for(int k=0; k<cantDat; k++)
            {
                matriz[fila,columna] += f(fila,X[k])*f(columna,X[k]);
            }
        }}
        
        for(int fila=0; fila<3; fila++)
        {
            matriz[fila,3] = 0;
            for(int k=0; k<cantDat; k++)
            {
                matriz[fila,3] += f(fila,X[k])*Y[k];
            }
        }
        
        double[] solucion = SolEcLin(matriz);
        Console.WriteLine("------------------------------------------");
        Console.WriteLine("Punto A = " + solucion[0]);
        Console.WriteLine("Punto B = " + solucion[1]);
        Console.WriteLine("Punto C = " + solucion[2]);
        Console.WriteLine("------------------------------------------");
        
    }
}

Current Student List:
Id=100,Firstname=John,LastName=Doe,IsCurrentStudent=True
Id=200,Firstname=Jane,LastName=Smith,IsCurrentStudent=True
Id=300,Firstname=Joe,LastName=Bloggs,IsCurrentStudent=True

Current Student List:
Id=100,Firstname=John,LastName=Does,IsCurrentStudent=True
Id=200,Firstname=Jane,LastName=Smith,IsCurrentStudent=True
Id=300,Firstname=Joe,LastName=Bloggs,IsCurrentStudent=True

Current Student List:
Id=100,Firstname=John,LastName=Does,IsCurrentStudent=True
Id=200,Firstname=Jane,LastName=Smith,IsCurrentStudent=False
Id=300,Firstname=Joe,LastName=Bloggs,IsCurrentStudent=True

Last Run:	10:35:50 pm
Compile:	0.22s
Execute:	0.094s
Memory:	995.15kb
CPU:	0.203s

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