Class EigenCount


  • public class EigenCount
    extends Object
    Counts the number of eigenvalues in a symmetric tridiagonal matrix T that are less than a given value x.
    • Constructor Detail

      • EigenCount

        public EigenCount​(Vector D,
                          Vector E2)
        Creates an instance for a symmetric tridiagonal matrix T.
        Parameters:
        D - the diagonal entries of T
        E2 - the square of sub-diagonal entries of T
    • Method Detail

      • count

        public int count​(double x)
        Counts the number of eigenvalues that are less than a given value x.
        Parameters:
        x - the value of x
        Returns:
        the count