Someone

import java.math.*;

/*
blah blah
*/

base = (double)(1 + ( INTEREST_RATE / 12 ));
exponent = (double)(paymentsMadeToDate - totalNumOfPayments);
powerNum = pow(base, exponent);

/*
----------
1. ERROR in PaymentCalculator.java (at line 37)
        powerNum = pow(base, exponent);
                   ^^^
The method pow(double, double) is undefined for the type PaymentCalculator.NumericHandler
----------
*/