Tangent Plane chain rule Direction Derivative and Gradient Vector Maximum And Minimum Value Lagrange Multipliers
Vectors And Geometry Space
Dot Product Cross Product
C++ Notes
Create Vector Of Functions literal operator template like function static global variables Example: When you compile these programs, you will get an error:
OpenCV Mat
You will need to include only the opencv2/opencv.hpp header file in your programAdd the using namespace cv; line just after including header files Data Types of
Elementary Linear Algebra
https://www.malabdali.com/wp-content/uploads/2020/08/Elementary-Linear-Algebra.pdf
Qt Painter
QPainter provides highly optimized functions to do most of the drawing GUI programs require. It can draw everything from simple lines to
Qt Images And Fonts
Qt provides four classes for handling image data: QImage, QPixmap, QBitmap and QPicture. QImage is designed and optimized for I/O, and for direct pixel access and
Widgets in Qt
The widget is the atom of the user interface: it receives mouse, keyboard and other events from the window system, and paints
I/O In Qt
Qt encapsulates the more generalized notion of byte streams in its QIODevice class, which is the parent class for QFile, as well as network I/O
C++ String
A string is very similar to a std::vectorThe following code snippet has the std::string name with the value RainerGrimm. I use the STL algorithm std::find_if to get
Multithreading With Qt
QThread A QThread object manages one thread of control within the program. QThreads begin executing in run(). By default, run() starts the event loop
JSON With Qt
QJsonDocumentThe QJsonDocument class provides a way to read and write JSON documents.isArray,isObject,isNull,isEmpty to check the main content of documentobject(),array() to get main
Multithreading
Atomic Data Types C++ has a set of simple atomic data types. These are booleans, characters, numbers and pointers in many variants. They
Qt Internationalization
Most real projects have a target audience in multiple countries. The most notable difference between them is the spoken language, but there are other
String handling
Applications with a graphical user interface (and games surely fall into this category) are able to interact with users by displaying text and by
Chrono in C++
Chrono library is used to deal with date and time. This library was designed to deal with the fact that timers and