Intro to Computer Science - Python | Khan Academy - Tracing variables | Intro to CS - Python | Khan Academy

Trace a program with variables to understand how the computer interprets assignment statements, variable accesses, and variable expressions. View the program used in this video at: https://www.khanacademy.org/python-program/evaluating-expressions-with-variables/5620697605521408 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:computational-thinking-with-variables 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 - 01:15 : gene = "BRCA2" 01:16 - 01:59 : num_mutations = 4 + 5 + 2 02:00 - 02:51 : print(gene + "gene") 02:52 - 03:45 : num_mutations = num_mutations + 1 03:46 - 04:30 : gene = num_mutations 04:31 - 05:09 : num_mutations = gene + 5 05:10 - 05:32 : print(num_mutations + gene) 05:33 - 05:46: program termination