Temperature converter using python

Aim

Convert temperature values back and forth between Celsius (c), and Fahrenheit (f). [Formula: c/5 = f-32/9]

Algorithm

1. Start
2. Take input from the user for the temperature value
3. Take input from the user for the temperature unit
4. Convert the temperature value to floating point number
5. If the temperature unit is c, convert the temperature value to Fahrenheit
6. If the temperature unit is f, convert the temperature value to Celsius
7. Print the result
8. End

Program

# Function to convert temperature from Celsius to Fahrenheit
def celsius_to_fahrenheit(celsius):
    return (celsius * 9/5) + 32
 
# Function to convert temperature from Fahrenheit to Celsius
def fahrenheit_to_celsius(fahrenheit):
    return (fahrenheit - 32) * 5/9
 
# Take input from the user
temperature = float(input("Enter the temperature value: \n"))
unit = input("Enter the temperature unit (c/f): \n")
 
# Convert the temperature value
if unit == 'c':
    result = celsius_to_fahrenheit(temperature)
    print(f"{temperature}°C is equal to {result}°F")
elif unit == 'f':
    result = fahrenheit_to_celsius(temperature)
    print(f"{temperature}°F is equal to {result}°C")
else:
    print("Invalid temperature unit")
 

Sample Input/Output

Enter the temperature value:
0
Enter the temperature unit (c/f):
c
0.0°C is equal to 32.0°F

Enter the temperature value:
32
Enter the temperature unit (c/f):
f
32.0°F is equal to 0.0°C

Enter the temperature value:
100
Enter the temperature unit (c/f):
k
Invalid temperature unit

Explanation

• The program takes the temperature value and the temperature unit as input from the user.
• The temperature value is converted to a floating-point number.
• If the temperature unit is c, the program converts the temperature value to Fahrenheit using the formula (celsius * 9/5) + 32.
• If the temperature unit is f, the program converts the temperature value to Celsius using the formula (fahrenheit - 32) * 5/9.
• The program then prints the converted temperature value.

Complexity Analysis

The time complexity of this program is O(1) as it performs a fixed number of operations regardless of the input size.

The space complexity of this program is also O(1) as it uses a fixed amount of space to store the input values and the result.

How can you improve this program?

1. You can add support for more temperature units like Kelvin.
2. You can add more conversion functions for other temperature units.
3. You can add error handling for invalid input values.

Summary

In this tutorial, we learned how to create a simple temperature converter program in Python that converts temperature values between Celsius and Fahrenheit. We discussed the algorithm, implemented the program, and provided sample input/output along with an explanation. We also analyzed the complexity of the program and discussed ways to improve it.