package rpn.doubles;

import rpn.Calculator;

public class LogItem extends FcnItem {
	
	public LogItem(Calculator ca) {
		super(ca);
	}
	
	public double f(double x) {
		return(Math.log(x));
	}
	
	public boolean inRange(double x) {
		return(x > 0.0);
	}
	
	public String toString() {
		return("log");
	}
}