Download cryptography library and build for wasm Download cryptography source code at GitHub, cryptopp. Go to cryptopp folder which contains GNUmakefile. Build it to generate C++ library and execute file. make static dynamic cryptest.exe Create a new folder build and move all generated files into it. mv *.o *.so *.a Read more…
Change Default Root Directory In React Project We will get a default root directory in the html file to access after run npm run build. For example, there is <script src=”/static/js/2.665e3ec0.chunk.js”> in index.html. How to change the default root direction ? We can configure our react project. Add this line Read more…
The web page for Images To MP4:https://www.weiy.city/image-processing/images-to-mp4/ We created python scripts. When a user uploads a picture ZIP file, a video compression package is generated. Read the pictures and convert it to the same size. Write to a new video file and compress it. Create a new web page to Read more…
3D Model Editor – Linear Transform Tester There are many magical properties in matrix computation, such as: AB != BA A != 0, B != 0, but maybe AB = 0. AB = AC, A != 0, but we can’t get that B = C. People couldn’t understand why it Read more…
The eigenvector of a linear transformation doesn’t change in the transformation, and the scale of this vector under the transformation is called the eigenvalue. Practice We use 3D Model Editor to perform the following linear transformation: For more information on how to use the web app 3D Model Editor to Read more…
There are many magical properties in matrix computation, such as: AB != BA A != 0, B != 0, but maybe AB = 0. AB = AC, A != 0, but we can’t get that B = C. People couldn’t understand why it was so different from ordinary numerical calculations Read more…
We had created a new web app, to do tasks, at https://www.weiy.city/functions/to-do-list/ . You can add tasks and enjoy the working time every day. If you want to access the app easily, just do the steps in the following video to the app icon on the desktop.
Here is a web app which can help you to compress your image.It’s simple to use it, just upload your image, click on the compress button and download the new picture. You can change the compressing rate for the original image by dragging the slider bar. Page: https://www.weiy.city/functions/image-compressor/ Demo video Read more…
Tetris We had uploaded a new game Tetris on the web page: https://www.weiy.cc/2024/05/09/tetris/ You can play on the desktop computer with four buttons, up, down, left, and right. You can also play with virtual buttons on the screen if you are using a mobile smartphone or mobile computer. Demo on Read more…