How to configure Mathematics Formula in C# web application

double[] array1 = { 3, 2, 4, 5, 6 };

double[] array2 = { 9, 7, 12, 15, 17 };

double[] array_xy = new double[array1.Length];

double[] array_xp2 = new double[array1.Length];

double[] array_yp2 = new double[array1.Length];

for (int i = 0; i < array1.Length; i++)

array_xy[i] = array1[i] * array2[i];

for (int i = 0; i < array1.Length; i++)

array_xp2[i] = Math.Pow(array1[i], 2.0);

for (int i = 0; i < array1.Length; i++)

array_yp2[i] = Math.Pow(array2[i], 2.0);

double sum_x = 0;

double sum_y = 0;

foreach (double n in array1)

sum_x += n;

foreach (double n in array2)

sum_y += n;

double sum_xy = 0;

foreach (double n in array_xy)

sum_xy += n;

double sum_xpow2 = 0;

foreach (double n in array_xp2)

sum_xpow2 += n;

double sum_ypow2 = 0;

foreach (double n in array_yp2)

sum_ypow2 += n;

double Ex2 = Math.Pow(sum_x, 2.00);

double Ey2 = Math.Pow(sum_y, 2.00);

double Correl =

(array1.Length * sum_xy - sum_x * sum_y) /

Math.Sqrt((array1.Length * sum_xpow2 - Ex2) * (array1.Length * sum_ypow2 - Ey2));

Console.WriteLine("CORREL : "+ Correl);

OR TRY

https://stackoverflow.com/questions/17447817/correlation-of-two-arrays-in-c-sharp

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