How to calculate determinant of n x n matrix in C#?

[Sajo_Nezic]

Hello everybody. I create n x n matrix where I must calculate determinant but I don´t know how. Please can you help me?
Here is code of my matrix

Console.WriteLine("Enter number of rows and columns in your matrix");

int n = int.Parse(Console.ReadLine());
int[,] l = new int[n, n];

Console.WriteLine("Enter numbers of your matrix");

for(int i = 0; i < n; i++)
{
for(int j = 0; j < n; j++)
{
l[i,j] = int.Parse(Console.ReadLine());
}
}

Console.WriteLine("Now lets print your matrix");

for(int i = 0; i < n; i++)
{
Console.WriteLine();

for(int j = 0; j < n; j++)
{
Console.Write("{0}\t", l[i, j]);
}
}

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