static class Logarithm extends PostfixMathCommand {
public Logarithm() {
numberOfParameters = 1;
}
private static final double LOG_10 = Math.log(10);
public final double operation(double[] params) throws ParseException {
return Math.log(params[0]) / LOG_10;
}
}
public final double operation(double[] params) throws ParseException {
return Math.log(params[0]);
}