fin

The command line tool "fin" is a financial command-line calculator designed to perform various financial calculations and simulations. It is commonly used for tasks such as calculating loan payments, interest rates, investment returns, and other financial planning calculations.

Some key features of the "fin" tool include:

1. Loan and Mortgage Calculations: It can calculate monthly payments, total interest paid, and other details for different types of loans and mortgages.

2. Investment Analysis: It can compute the future value, present value, and rate of return for various investment scenarios. This helps in evaluating the performance and profitability of investments.

3. Time Value of Money: It incorporates the concept of time value of money, allowing users to discount future cash flows to present value and vice versa.

4. Retirement Planning: "fin" can assist in planning for retirement by calculating how much needs to be saved, the required rate of return, and how long it will take to reach retirement goals.

5. Currency Conversion: It includes features to convert between different currencies, facilitating international financial calculations.

6. Sensitivity Analysis: It enables users to perform sensitivity analysis on inputs, such as interest rates or investment returns, to evaluate the impact on financial outcomes.

Overall, "fin" is a versatile and powerful command line tool that can help individuals, financial professionals, and analysts with a wide range of financial calculations and simulations.