Features Implemented:
- Two Calculation Tabs:
- Calculator: Shows basic investment information
- Table: Shows detailed year-by-year breakdown
 
- Comprehensive Options:
- Initial investment amount
- Annual interest rate
- Time period (years or months)
- Compound frequency (annually, semi-annually, quarterly, monthly, daily)
- Additional contributions
- Contribution frequency
- Tax rate
- Inflation rate
 
- Detailed Results:
- Future value
- Total principal invested
- Total interest earned
- Inflation-adjusted value
- Effective annual rate
 
Norwegian:
Rentekalkulator
        
        Kalkulator
            Tabell
        Sluttverdi:
                    –
                Total investert beløp:
                    –
                Total renteinntekt:
                    –
                Reell verdi (justert for inflasjon):
                    –
                Effektiv årlig rente:
                    –
                | År | Innskudd | Renter | Balanse | Reell verdi | 
|---|
English:
Compound Interest Calculator
        
        Calculator
            Table
        Future Value:
                    –
                Total Principal:
                    –
                Total Interest Earned:
                    –
                Inflation Adjusted Value:
                    –
                Effective Annual Rate:
                    –
                | Year | Contributions | Interest | Balance | Real Value | 
|---|
