DefinePK

Description

How can we write conditionals with multiple branches of control flow? Trace the execution of chained conditionals to understand how the computer chooses which if, elif, or else branch to execute.

View the program used in this video at: https://www.khanacademy.org/python-program/elif-and-else-branches/5832207232581632

Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now with our Intro to Computer Science - Python course!

Course link: https://www.khanacademy.org/computing/intro-to-python-fundamentals/x5279a44ae0ab15d6:designing-algorithms-with-conditionals
Course playlist: https://www.youtube.com/playlist?list=PLSQl0a2vh4HDkbhG0sDW0b-VZXykEIAe5

Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help!

Donate or volunteer today! Donate here: https://www.khanacademy.org/donate?utm_source=youtube&utm_medium=desc

Volunteer here: https://www.khanacademy.org/contribute?utm_source=youtube&utm_medium=desc

TIMESTAMPS:
00:00 - 01:00 : else branches
01:01 - 01:30 : tracing an if-else conditional
01:31 - 02:10 : if versus if-else execution
02:11 - 02:36 : elif branches
02:37 - 03:12 : ordering elif conditions
03:13 - 04:00 : tracing an if-elif-else conditional
04:01 - 04:45 : why use chained conditionals?