python code to convert hexadecimal to decimal

Publicado em: 20 Janeiro 2024
no canal de: CodeRift

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Title: Python Tutorial: Hexadecimal to Decimal Conversion
Introduction:
Hexadecimal (hex) is a base-16 number system, commonly used in computing to represent binary-coded values in a more human-readable format. In Python, converting a hexadecimal number to its decimal equivalent is a straightforward process. This tutorial will guide you through the steps of converting a hexadecimal string to a decimal integer using Python.
Step 1: Understanding Hexadecimal and Decimal:
In the hexadecimal system, each digit represents a power of 16, starting from the rightmost digit. The decimal system, on the other hand, is base-10, where each digit represents a power of 10. To convert a hexadecimal number to decimal, you need to multiply each digit by 16 raised to the power of its position and sum the results.
Step 2: Using Python's built-in function:
Python provides a built-in function called int() that allows you to convert a string representation of a number from one base to another. Here's an example:
In this example, the int() function is used with the second argument set to 16, indicating that the input string is in hexadecimal format. The result is then printed to the console.
Step 3: Interactive Conversion Program:
Let's create an interactive program that takes user input for a hexadecimal number and converts it to decimal:
This program prompts the user to enter a hexadecimal number, converts it to decimal, and displays the result. It also handles potential errors if the input is not a valid hexadecimal number.
Conclusion:
Converting a hexadecimal number to decimal in Python is a simple task using the int() function with the base argument set to 16. Understanding the basic principles of number systems and using Python's built-in functions can make the conversion process straightforward and efficient.
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