Java Utililty Methods BigDecimal Square Root

List of utility methods to do BigDecimal Square Root

  1. HOME
  2. Java
  3. B
  4. BigDecimal Square Root

Description

The list of methods to do BigDecimal Square Root are organized into topic(s).

Method

BigDecimalsqrtProcedure(MathContext mc, int digits, BigDecimal numberToBeSquareRooted, BigDecimal iteration1, BigDecimal iteration2, BigDecimal temp1, BigDecimal temp2)
Square root by coupled Newton iteration, sqrtProcedure() is the iteration part I adopted the Algorithm from the book "Pi-unleashed", so now it looks more natural I give sparse math comments from the book, it assumes argument mc precision >= 1 
temp1 = BigDecimal.ONE.subtract(TWO.multiply(iteration1, mc).multiply(iteration2, mc), mc);
iteration2 = iteration2.add(temp1.multiply(iteration2, mc), mc); 
temp2 = numberToBeSquareRooted.subtract(iteration1.multiply(iteration1, mc), mc); 
iteration1 = iteration1.add(temp2.multiply(iteration2, mc), mc); 
int m = mc.getPrecision();
if (m < 2)
    m++;
else
...