Constructor Detail

• MathUtil

  public MathUtil()

Method Detail

• log2

  public static int log2(int x)

  Method that calculates the floor of the log, base 2, of 'x'. The calculation is performed in integer arithmetic, therefore, it is exact.

  Parameters:

  x - The value to calculate log2 on.

  Returns:

  floor(log(x)/log(2)), calculated in an exact way.

• lcm

  public static final int lcm(int x1,
                              int x2)

  Method that calculates the Least Common Multiple (LCM) of two strictly positive integer numbers.

  Parameters:

  x1 - First number

  x2 - Second number

• lcm

  public static final int lcm(int[] x)

  Method that calculates the Least Common Multiple (LCM) of several positive integer numbers.

  Parameters:

  x - Array containing the numbers.

• gcd

  public static final int gcd(int x1,
                              int x2)

  Method that calculates the Greatest Common Divisor (GCD) of two positive integer numbers.

• gcd

  public static final int gcd(int[] x)

  Method that calculates the Greatest Common Divisor (GCD) of several positive integer numbers.

  Parameters:

  x - Array containing the numbers.