private void CalculateCoefficientsSum( )
{
coefficientsSum = 0;
for ( int i = 0, n = coefficients.Length; i < n; i++ )
{
int[] coefficientsRow = coefficients[i];
for ( int j = 0, k = coefficientsRow.Length; j < k; j++ )
{
coefficientsSum += coefficientsRow[j];
}
}
}