Learn to code in 60 seconds #programming #computerscience #python #khanacademy

less than 1m read

·Nov 10, 2024

Learn to code in 60 seconds. A program is a coded set of instructions for a computer to execute. Programs manipulate data, which come in several data types: integers, that's whole numbers; floats, have decimal points; booleans, true or false; and strings, of characters (don't forget the quotation marks).

Need to store a piece of data for later use? A variable names its location and points to it. Have a bunch of data? Organize it with a data structure. Lists store data in an ordered sequence, but we start counting at an index of zero. Dictionaries associate each piece of data with a key for easy lookup.

To make decisions in a program, ask a question with a Boolean expression. Then, choose which path to take with an if statement. To repeat a code routine, use a loop. A while loop repeats until the answer to your question becomes false. A for loop repeats a fixed number of times.

Have a lot of code? Break it down into smaller tasks with functions. Customize the function with input arguments and call the function to execute its task. Did you catch all that? Take it at your own pace with Khan Academy's intro to computer science course.

Using units to solve problems: Road trip | Working with units | Algebra I | Khan Academy

2015 AP Calculus BC 5b | AP Calculus BC solved exams | AP Calculus BC | Khan Academy

View All

Changing equilibria from trade | APⓇ Microeconomics | Khan Academy

In this video, we’re going to think about how trade can alter the equilibrium price and quantity in a given market. So, what we see here, as we like to do, are very simplified examples of markets in various economies. First, we have Country A, and let’s …

How passwords and screenlocks help protect you

I could go on for hours about things to think about with passwords. Maybe the top two is that initially a password needs to be unique on every different site. And the reason for that is that if you share a password, if you use the same, you know, your kid…

Interpreting picture graphs (paint) | Math | 3rd grade | Khan Academy

Jacob charges nine dollars an hour to paint. The graph below shows the number of hours he spent painting different rooms of one house. How much did Jacob charge for painting the living room? So, here’s the graph. This is a picture graph or pictograph, an…

Staying at a hotel-Dinner at Nobu restaurant vlog with my mom🇯🇵

Hi, guys, it’s me, Ruri. Today, my mother and I came to a hotel to celebrate my first 1 million viewed video. I decided to book a hotel and a fancy Japanese dinner to thank my mom for supporting me. Okay, so here we have our bathroom, toilet, and shower,…

I Sold Out

What’s up, guys? It’s Graham here. So, in the span of less than a year, I started a coffee company. I was immediately threatened with a lawsuit that forced us to start over just days before we planned to launch. I then got confronted by that person who sh…

Passive Income 2019: How I now earn $7930 per month passively

What’s up you guys? It’s Graham here. So, I think this video topic has become somewhat of an annual tradition because, on March 3rd, 2017, I posted a video explaining how I was making three thousand nine hundred and fifty dollars per month in passive inco…

Learn to code in 60 seconds #programming #computerscience #python #khanacademy

More Articles