Operator ^ cannot be applied to operands of type float and int

Question

Problem definition: design a class BankAccount (accountno, name). Inherit this class in FixedDeposit class which has data members like principal amount (P), rate of interest (R), no. of years (N).

Allow users to input P, R, N and calculate Due Amount (A) and interest (I).

Formulas

A = P(1 + R / 100) ^ N    and   I = A - P

My code:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace prac_18
{
    public class BankAccount
    {
        int accno;
        string name;
    }

    public class FixedDeposit : BankAccount
    {
        float pamt;
        float roi;
        int years;

        public  void getdata(float p,float r,int y)
        {
            pamt = p;
            roi = r;
            years = y;
        }

        public float calc_due()
        {
             float amt = 0;
             amt = pamt * (1 + roi / 100)^years;   // Here I get the error
             return amt;
        }

        public float calc_intrest()
        {
             float  intrest = 0;
             intrest = calc_due() - pamt;
             return intrest;
        }
    }
}

`^` is a binary XOR operator in C#, not the exponential. You need `Math.Pow()`. — Ron Beyer, May 02 '18 at 14:23
You need to use Math.Pow ^ has a whole new meaning in coding languages — BugFinder, May 02 '18 at 14:23
The ^ operator is a logical XOR. If you were looking for an exponential operator, there isn't one - have a look at `Math.Pow` instead. — peeebeee, May 02 '18 at 14:25
`amt = Math.Pow(pamt * (1 + roi / 100), years)` is what you are after. When you move past `+`, `-`, `*`, and `/` it's helpful to read the manual/ask google as each language has a different syntax for dealing with math. — JNevill, May 02 '18 at 14:27

score 1 · Answer 1 · answered May 02 '18 at 14:25

1

In C# the ^ operator is Exclusive OR - so cannot be used with float & int.

But it looks like you want to use it to raise a value by a power, so you want to use Math.Pow

 amt = pamt * Math.Pow((1 + roi / 100), years);

answered May 02 '18 at 14:25

PaulF

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thanks a lot sir!! – coc champ May 02 '18 at 14:27
Not sure why you got downvoted, but this question was always going to be a duplicate. – DavidG May 02 '18 at 14:30

Operator ^ cannot be applied to operands of type float and int

1 Answers1