Graph of quadratic function with CanvasRenderingContext2D Programming Web Development by alexanderrm2024 Hello everyone, I have a task in which I would like to implement the graphical visualisation of a quadratic equation in the interval x =[-10,10] and - if any exist - the corresponding zeros, using CanvasRenderingContext2D methods. To convert the coordinates into pixel coordinates within the canvas: the coordinates into pixel coordinates … Re: Calling an object from another in PHP using construct Programming Web Development by FarrisFahad Hey, I know that this discussion is old but I need to know now. I am new to OOP in PHP. Is it good to call a class within a class? Why or why not? How should I create an object? I want objects to use other methods from other objects. Your example is good ... class A { private $obj; public function __construct… Re: Calling an object from another in PHP using construct Programming Web Development by pritaeas That causes an infinite loop as described by jkon. I'd go for a container class: ```php class Container { private $A; private $B; private $C; public function __construct($A, $B, $C) { $this->A = $A; $this->B = $B; $this->C = $C; } } $A = new A(); $B = new B(); $C = new … Re: Graph of quadratic function with CanvasRenderingContext2D Programming Web Development by Dani Have you learned how to graph things? Did your professor teach you about using Canvas yet? Here is a tutorial for getting started: https://developer.mozilla.org/en-US/docs/Web/API/Canvas_API/Tutorial Re: How about implementing a door opening system based on finger print? Programming Software Development by trueframe Sure! Creating a door system that opens with fingerprints is a great idea. It's secure and convenient. Instead of keys, you use your fingerprint. It's unique to you, so only you can open it. It's safer than traditional locks and doesn't require carrying keys. Re: Which programming language is best Ludo game development? Programming Game Development by kishanrg When it comes to developing a Ludo game, the choice of programming language largely depends on your familiarity with the language and the platforms you intend to target. However, some commonly used languages for game development, including Ludo games, are C++, C#, Java, JavaScript, and Python. Ultimately, the "best" programming … Re: how to create a simple elevator simulation? Programming Software Development by trueframe To make a basic elevator simulation, first, identify the floors and the elevator's capacity. Then, use loops and conditionals in programming to mimic its movement. Include buttons for users to call the elevator and select floors. Test thoroughly for accuracy. Re: Which programming language is best Ludo game development? Programming Game Development by polles i would choose JavaScript Re: Which programming language is best Ludo game development? Programming Game Development by m2host I will choose Python or JavaScript Re: Calling an object from another in PHP using construct Programming Web Development by jkon In every OOP language that I know you can create infinite recursive loops in a construction method . Lets play a bit with it in PHP: class A { private $obj; public function __construct() { $this->obj = new B(); } } class B { private $obj; public … Re: This is me venting Community Center Meta DaniWeb by jkon Dani , yes I also believe that you are responsible for the decline of DaniWeb .... BUUUT that was many years ago. We all foreseen the decline of "forums" back in early 2010's , there were many alternatives of what to do , and I strongly believe that you choose the wrong one. I will not repeat what you did or what you could be done … Re: What's the most unexpected hobby or interest you have outside of coding? Community Center Geeks' Lounge by toneewa With "Tennis Elbow", it’s the tendons that connect these muscles to the bones that are primarily affected by this condition. Tendons, which connect muscles to bones, are primarily composed of collagen, a protein that requires several key nutrients for its formation and function. Vitamin A: It can help enhance collagen development. … Re: Microsoft Copilot is missing! Hardware and Software Microsoft Windows by Reverend Jim Right click on taskbar and select taskbar settings. If you want the icon to show then turn copilot preview on. Or you can use the hotkey WINDOWS+C. Copilot should appear docked to the right of the screen.. Re: Printing multiple integers EASY SOLUTION Programming Software Development by Bunker A straightforward solution to printing multiple integers is to use a loop. For example, in Python, you could use a "for" loop to iterate through a list of integers and print each one. This method is simple and effective. Re: Video is not the main content of the page Digital Media Digital Marketing Search Engine Strategies by Read a Book BUMP. Anyone can help with this issue ? :/ Re: Video is not the main content of the page Digital Media Digital Marketing Search Engine Strategies by Dani I’ll take a look at this tomorrow. I’m currently in bed :) Re: Video is not the main content of the page Digital Media Digital Marketing Search Engine Strategies by Dani You have the itemtype set to a VideoObject but, as you point out, only sometimes is there actually an .mp4 file. The rest of the time, it's a static image such as a png, jpg, or jpeg. Google probably doesn't trust your meta tags since they are inaccurate half the time. Re: Video is not the main content of the page Digital Media Digital Marketing Search Engine Strategies by Read a Book But i am generating the JSON code dynamically. If there is no video than i hide the VideoObject tag with if statement. Should i just remove the `itemscope itemtype="http://schema.org/VideoObject"` Re: Video is not the main content of the page Digital Media Digital Marketing Search Engine Strategies by Dani Yes, if the page does not contain video content, then remove `itemscope itemtype="http://schema.org/VideoObject"` I'm so sorry for not responding sooner. I just saw your post now. How do I swap out the mesh on a humanoid armature in Unity 3D? Programming Game Development by Michael_80 In Unity 3D, utilizing the Starter Assets package, I am trying to swap the mesh on the Starter Asset character that I duplicated in the scene. I unpacked a prefab so that I could utilize the mesh filter of the new prefab that I imported. I realized that there are several meshes on the (prefab/game object) that I unpacked and wanted to know how to … C++ programming error Programming by sammieb I am trying to enter a single string in C++ in which I give a URL citation. the entire line is as follows: cout << 'furey, edward "sphere calculator" at https://www.calculatorsoup.com/calculators/geometry-solids/sphere.php from calculatorsoup, https://www.calculatorsoup.com - online calculators' << endl; I am getting the… Read file properties of video files in C++ Programming Software Development by Thomasio I want to figure out what Windows does when you right-click a video file and check properties and I would like to write a similar piece of code in C++. I should be able to figure out how to read the file type and size, but I'm lost in how to get details of the video like resolution and runtime. Which API commands does Windows use there? Re: Read file properties of video files in C++ Programming Software Development by toneewa The [Windows Media Foundation API](https://learn.microsoft.com/en-us/windows/win32/api/mfmediaengine/nf-mfmediaengine-imfmediaengine-getduration#requirements) is probably what you are thinking of. You also can just use my example, using the ffmpeg library. Just change the filename. extern "C" { #include <libavformat/… Re: Getting Started With C# - The List Programming Software Development by Shahzad111 C-Sharp Tutorial is for student and prefessional who want to learn C# programming from basic to advance. We have discussed every topic of C# alonge with examples in this tutorial guide. https://c-sharptutorial.com/ Re: How can I better use C++and data structures and algorithms Programming Computer Science by tinstaafl Here's a free course that also has video transcripts in Chinese [Click Here](https://www.edx.org/learn/data-structures/ibm-data-structures-algorithms-using-c?irclickid=wHcSD31V3xyPTCjz4zwfC1-YUkH1ZVUH5RvbSQ0&utm_source=affiliate&utm_medium=Class%20Central&utm_campaign=Harvard%27s%20Computer%20Science%20for%20Python%20Programming_&… how converte C to VB6? Programming Software Development by cambalinho how can i convert these C line: (py>>6)<<6) to VB6? Re: how converte C to VB6? Programming Software Development by SCBWV VB6 doesn't support <<. As best I can determine, the C code is shifting bits to the right, then back to the left, effectively clearing the lower 6 bits. In VB6, you can do the same by: Dim py As Long Dim shiftedValue As Long shiftedValue = py / (2 ^ 6) ' Shift right by 6 positions shiftedValue = shiftedValue * (2 ^ 6)… Re: C++ programming error Programming by rproffitt You'll want to escape those quote marks and maybe more. Read https://en.cppreference.com/w/cpp/language/escape Example follows: #include <iostream> using namespace std; int main() { cout << "furey, edward \"sphere calculator\" at https://www.calculatorsoup.com/calculators/geometry-solids/… Create And Install Windows Service Step By Step In C# Programming Web Development by Rabiya_1 I'm New In c# and want to create a windows service here what I'm trying public TestService() { InitializeComponent(); timeDelay = new System.Timers.Timer(); timeDelay.Elapsed += new System.Timers.ElapsedEventHandler(WorkProcess); } public… Re: Read file properties of video files in C++ Programming Software Development by pritaeas Here's a good place to start: https://mediaarea.net/en/MediaInfo