CSharp LU分解 源代码
时间: 2023-12-25 18:24:02 浏览: 21
抱歉,我无法提供C# LU分解的源代码。 但是,您可以在互联网上找到许多这样的实现。以下是一个简单的示例:
```csharp
public static void LUDecomposition(double[][] matrix, out double[][] L, out double[][] U)
{
int n = matrix.Length;
L = new double[n][];
U = new double[n][];
for (int i = 0; i < n; i++)
{
L[i] = new double[n];
U[i] = new double[n];
}
for (int j = 0; j < n; j++)
{
U[0][j] = matrix[0][j];
L[j][0] = matrix[j][0] / U[0][0];
}
for (int i = 1; i < n; i++)
{
for (int j = i; j < n; j++)
{
double sum = 0.0;
for (int k = 0; k < i; k++)
{
sum += L[i][k] * U[k][j];
}
U[i][j] = matrix[i][j] - sum;
}
for (int j = i + 1; j < n; j++)
{
double sum = 0.0;
for (int k = 0; k < i; k++)
{
sum += L[j][k] * U[k][i];
}
L[j][i] = (matrix[j][i] - sum) / U[i][i];
}
}
}
```