while True: p = float (input ("Enter the starting principal, 0 to quit: ")) if p <= 0: print ("Program exiting ....") break r = float(input ("Enter the annual interest rate: ")) n = float(input("How many times per year is the interest compounded? ")) t = float (input("For how many years will the account earn interest? ")) total = p * (1 + float (r / 100) / n) ** (n * t) interest = total - p print ("At the end of {:.lf} years you will have $ {:,.2f} with interest earned $ {:.2f}".format(t, total, interest) print ('')
while True: p = float (input ("Enter the starting principal, 0 to quit: ")) if p <= 0: print ("Program exiting ....") break r = float(input ("Enter the annual interest rate: ")) n = float(input("How many times per year is the interest compounded? ")) t = float (input("For how many years will the account earn interest? ")) total = p * (1 + float (r / 100) / n) ** (n * t) interest = total - p print ("At the end of {:.lf} years you will have $ {:,.2f} with interest earned $ {:.2f}".format(t, total, interest) print ('')
Computer Networking: A Top-Down Approach (7th Edition)
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ISBN:9780133594140
Author:James Kurose, Keith Ross
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Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Question
Turn the image given into a function that can be imported into another
Using While Loop the program should prompt the user for these 2 choices:
1 Calculate Interest Rate
99 Quit
If 1 was selected, then the program should run the function to find interest rate. If 99 was selected, then the program exits.
![```python
while True:
p = float(input("Enter the starting principal, 0 to quit: "))
if p <= 0:
print("Program exiting ....")
break
r = float(input("Enter the annual interest rate: "))
n = float(input("How many times per year is the interest compounded? "))
t = float(input("For how many years will the account earn interest? "))
total = p * (1 + float(r / 100) / n) ** (n * t)
interest = total - p
print("At the end of {:.1f} years you will have $ {:,.2f} with interest earned $ {:,.2f}".format(t, total, interest))
print('')
```
### Explanation:
This Python script calculates the future value of an investment based on compound interest. Below is an explanation of the key components:
1. **Loop Structure**:
- `while True:` creates an infinite loop that will continually run until broken out of.
- The loop will exit if the user inputs a principal (`p`) of 0 or less, at which point the message "Program exiting ...." is printed.
2. **User Input**:
- The script prompts the user to input:
- `p`: The starting principal.
- `r`: The annual interest rate.
- `n`: The number of times the interest is compounded per year.
- `t`: The number of years the money is invested.
3. **Compound Interest Calculation**:
- `total`: The future value of the investment is calculated using the formula:
\[
\text{total} = p \times \left(1 + \frac{r / 100}{n}\right)^{(n \times t)}
\]
- `interest`: The interest earned is determined by subtracting the principal from the total value.
4. **Output**:
- The script prints the total amount at the end of the investment period and the interest earned, formatted to two decimal places for monetary precision.
- Additional spacing is inserted for readability.
This code is useful for understanding how compound interest affects the growth of an investment over time.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fdec6af38-3348-4b7d-979b-f3d453210b87%2F3e421aac-70b8-41dc-b186-45c4b95220bb%2Fvhs2swq_processed.png&w=3840&q=75)
Transcribed Image Text:```python
while True:
p = float(input("Enter the starting principal, 0 to quit: "))
if p <= 0:
print("Program exiting ....")
break
r = float(input("Enter the annual interest rate: "))
n = float(input("How many times per year is the interest compounded? "))
t = float(input("For how many years will the account earn interest? "))
total = p * (1 + float(r / 100) / n) ** (n * t)
interest = total - p
print("At the end of {:.1f} years you will have $ {:,.2f} with interest earned $ {:,.2f}".format(t, total, interest))
print('')
```
### Explanation:
This Python script calculates the future value of an investment based on compound interest. Below is an explanation of the key components:
1. **Loop Structure**:
- `while True:` creates an infinite loop that will continually run until broken out of.
- The loop will exit if the user inputs a principal (`p`) of 0 or less, at which point the message "Program exiting ...." is printed.
2. **User Input**:
- The script prompts the user to input:
- `p`: The starting principal.
- `r`: The annual interest rate.
- `n`: The number of times the interest is compounded per year.
- `t`: The number of years the money is invested.
3. **Compound Interest Calculation**:
- `total`: The future value of the investment is calculated using the formula:
\[
\text{total} = p \times \left(1 + \frac{r / 100}{n}\right)^{(n \times t)}
\]
- `interest`: The interest earned is determined by subtracting the principal from the total value.
4. **Output**:
- The script prints the total amount at the end of the investment period and the interest earned, formatted to two decimal places for monetary precision.
- Additional spacing is inserted for readability.
This code is useful for understanding how compound interest affects the growth of an investment over time.
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