How do I perform basic math with BigDecimals

i need to multiply, subtract, divide, get 10 to the power of a BigDecimal and the absloute value.

this is a sample with error on bottom: Code:

`import java.util.*;`

import java.math.BigDecimal;

public class tentothezero{

public static void main(String[] arguments){

BigDecimal Bigy1 = new BigDecimal(36);

BigDecimal Bigy2 = new BigDecimal(11);

Bigy2 = new BigDecimal.multiply(Bigy1,Bigy2);

System.out.println(Bigy2);

--------------------Configuration: <Default>--------------------

C:\Documents and Settings\Ryan\My Documents\tentothezero.java:10: cannot find symbol

symbol : class multiply

location: class java.math.BigDecimal

Bigy2 = new BigDecimal.multiply(Bigy1,Bigy2);

^

1 error

Process completed.