By Dev Ramtal, Adrian Dobre
• Use applicative programming concepts with top quality services
• know how and why chances are you'll leverage variable scoping and closures
• Delve into higher-order functions—and learn the way they take different services as arguments for optimum virtue
• discover how one can compose new features from latest capabilities
• decrease, conceal, or do away with the footprint of nation swap on your courses
• perform flow-based programming with chains and sensible pipelines
• notice tips to code with no utilizing sessions
- Learn iOS 8 App Development (2nd Edition)
- Greasemonkey Hacks: Tips & Tools for Remixing the Web with Firefox
- AngularJS Deployment Essentials
Hopefully, you might find some use for them! Perhaps build that game that shoots balls over hills. Or maybe get rid of the graph and curve to produce some cool math-based animations without giving away how you’ve done it. log() function can do. It can help you to understand the logic or physics in your code, and to identify any potential problems. Think of it as a dashboard or instrument panel like the ones in a car or plane, and soon you’ll be using it more than you think! 45 CHAPTER 3 N SOME MATH BACKGROUND The trouble with circles Let’s now try to move an object around a circle using the same method we’ve used in the previous two sections.
5 x5 + 3x3 + x2 – 2x – 3 41 CHAPTER 3 N SOME MATH BACKGROUND Things that grow and decay: exponential and log functions There are many more exotic types of functions that display interesting behavior. One interesting example is the exponential function, which crops up all over physics. It is defined mathematically by y ex You might be wondering what e stands for. 71828. 14159. Constants such as S and e appear all over physics. The exponential function is also sometimes written as exp(x). exp() function.
It might also be possible to precalculate the motion of an object and animate it afterward. This can be done by using a for or while loop to represent time-stepping, calculating the particles position at each step and saving the position coordinates in an array. Why would you want to do that? It can be useful, for example, if calculations take too long to perform and cannot fit within a reasonable frame rate. The downside of this method is that it doesn’t work with interactivity. Because user interaction is usually an important aspect of physics-based applications, we won’t generally use this approach.