java.math
Class BigInteger
Method Summary 
void

downto(Number to, Closure closure)
Iterates from this number down to the given number, inclusive,
decrementing by one each time.

Number

power(Integer exponent)
Power of a BigInteger to an integer certain exponent.

void

upto(Number to, Closure closure)
Iterates from this number up to the given number, inclusive,
incrementing by one each time.

downto
public void downto(Number to, Closure closure)

 Iterates from this number down to the given number, inclusive,
decrementing by one each time.
 Parameters:
to
 the end number.
closure
 the code to execute for each number.
 Since:
 1.0
power
public Number power(Integer exponent)

 Power of a BigInteger to an integer certain exponent. If the
exponent is positive, call the BigInteger.pow(int) method to
maintain precision. Called by the '**' operator.
 Parameters:
exponent
 an Integer exponent.
 Returns:
 a Number to the power of a the exponent
upto
public void upto(Number to, Closure closure)

 Iterates from this number up to the given number, inclusive,
incrementing by one each time. Example:
0.upto( 10 ) {
println it
}
Prints numbers 0 to 10
 Parameters:
to
 the end number.
closure
 the code to execute for each number.
 Since:
 1.0