package rebelsky.computation;

import java.math.BigDecimal;

import rebelsky.io.Pen;

/**
 * A simple test of my various exponentiation methods.
 *
 * @author Samuel A. Rebelsky
 * @version 1.0 of October 2004
 */
public class ExpTest
{
	public static void main(String[] args)
	{
		Pen pen = new Pen();
		if (args.length != 2) {
			pen.println("Usage: java ExpTest base exponent");
			return;
		}
		Computer comp = new Computer();
		BigDecimal base = new BigDecimal(args[0]);
		long exponent = Long.parseLong(args[1]);
		BigDecimal result;

 		comp.reset();
		result = comp.expi(base, exponent);
		pen.println(base + "^" + exponent + " = " + result);
		pen.println("  Computation took: " + comp.steps() + " multiplications");

 		comp.reset();
		result = comp.expr(base, exponent);
		pen.println(base + "^" + exponent + " = " + result);
		pen.println("  Computation took: " + comp.steps() + " multiplications");
	} // main(String[])

} // class ExpTest