

Computing: Art, Magic, Science  ETHx on edX  Course About Video
DR. BERTRAND MEYER: In every kind of human activity today, computing and information technology are involved. And I really mean every. From communication to transportation to business to government to administration to education to even things like music, computing is involved at every step along the way. Computing is an art, computing is also magic. We continue to be awed by the power of what we can do with computing. But behind computing there is also a science. Computing involves computers, of course. And today, computers take all kinds of shapes and forms. For example, this is not just a phone, it’s a computer. And as a computer, it’s more…

Mobile Computing with App Inventor – CS Principles  TrinityX on edX  Course About Video

Examples finding the domain of functions

KVL in the frequency domain

Intro to Computing with Java  HKUSTx on edX  Course About Video
Hi. Welcome to “Introduction to Computing with Java”. I am T.C. Pong – the instructor for the course. What do you say? You mean you have no programming experience? Not to worry, if you have little or no programming experience this course is just right for you! This course will give you a taste of computer science! As you know, computers have revolutionized our lives because of its ability to help us solve problems. We use computers because it’s more efficient, effective and reliable in dealing with certain daily tasks. The primary goal for this course is for you to be able to create and implement solutions to problems using…

The Computing Technology Inside Your Smartphone  CornellX on edX  Course About Video
DAVE ALBONESI: Smartphones have become widely popular around the world. We use them to communicate, to organize our lives, to find information, even to entertain ourselves. All this is possible because a smartphone contains an amazingly powerful little computer. And the workings of that little computer are the subject of this course. We’ll start by covering the fundamental layers of computing technology, starting with binary numbers and moving step by step all the way up to apps. Now, at this point in the course, you’ll be able to design a working computer. Then we’ll learn advanced techniques, such as pipelining, multithreading, and multicore, and how they work together to make…

How to find the domain and range of a piecewise function  Functions  Algebra I  Khan Academy
So we have a piecewise linear function right over here for different intervals of x. g of x is defined by a a line or the line changes depending what interval of x we’re actually in. And so let’s think about its domain, and then we’ll think about its range. So the domain of this, this is a review. The domain is the set of all inputs for which this function is defined, and our input variable here is x. This is a set of all x values for which this function is defined. And we see here. Anything, anything negative 6 or lower, our function isn’t defined. If it,…

How to determine the domain of algebraic functions (examples)  Functions  Algebra I  Khan Academy
Let’s do some more examples finding do mains of functions. So let’s say we have a function g of x. So this is our function definition here tells us, look, if we have an input x, the output g of x is going to be equal to 1 over the square root of 6 minus — we write this little bit neater, 1 over the square root of 6 minus the absolute value of x So like always, pause this video and see if you can figure out what what is the domain of this function. Based on this function definition what is the domain of g? What is the…

How to determine the domain of a modeling function (example with a function)  Khan Academy
Pooja had a beautiful plant. The plant began sprouting 2 days before Pooja bought it, and she had it for 98 days before it died. At its tallest, the plant was 30 centimetres tall. Alright, let h of t denote the height of Pooja’s plant h, measured in centimeters, t days from the time she bought it. Which number type is more appropriate for the domain of the function? They tell us whether it’s integers or real numbers. So we just need to remind ourselves. The domain of a function, that’s a set of all the inputs for which the function is defined. And the inputs here, this is t…