Encoder | Quadrature Encoder Library for Arduino

I have added android:exported="true" to my only activity in manifest but still getting below error after updating compile sdk and target sdk version to 31.I also tried rebuilding the project , invalidating cache and restart but that didn't helped

Error- Apps targeting Android 12 and higher are required to specify an explicit value for android:exported when the corresponding component has an intent filter defined. See https://developer.android.com/guide/topics/manifest/activity-element#exported for details.

I want to encrypt data in a web browser that is send to my C# backend and decrypted there.

That fails because I am unable to decrypt the data generated on the frontend in the backend.

Here's what I did so far.

First I created a private/public key pair (in XmlString Format). I took the ExportPublicKey function to generate the public key file from here: https://stackoverflow.com/a/28407693/98491

I would like to create a video file from multiple images uploaded to my site.

Until now, what I do is take these images, draw them 1-by-1 on a canvas, and use the MediaRecorder API to record them. However, there is a lot of idle time.

Instead, I want to use the VideoEncoder API.

I created an encoder that saves every chunk as a buffer:

So I was trying to convert my data's timestamps from Unix timestamps to a more readable date format. I created a simple Java program to do so and write to a .csv file, and that went smoothly. I tried using it for my model by one-hot encoding it into numbers and then turning everything into normalized data. However, after my attempt to one-hot encode (which I am not sure if it even worked), my normalization process using make_column_transformer failed.

I am trying to find a more efficient solution to a combinatorics problem than the solution I have already found.

Suppose I have a set of N objects (indexed 0..N-1) and wish to consider each subset of size K (0<=K<=N). There are S=C(N,K) (i.e., "N choose K") such subsets. I wish to map (or "encode") each such subset to a unique integer in the range 0..S-1.

Using N=7 (i.e., indexes are 0..6) and K=4 (S=35) as an example, the following mapping is the goal:
0 1 2 3 --> 0
0 1 2 4 --> 1
...
2 4 5 6 --> 33
3 4 5 6 --> 34

N and K were chosen small for the purposes of illustration. However, in my actual application, C(N,K) is far too large to obtain these mappings from a lookup table. They must be computed on-the-fly.

In the code that follows, combinations_table is a pre-computed two-dimensional array for fast lookup of C(N,K) values.

All code given is compliant with the C++14 standard.

If the objects in a subset are ordered by increasing order of their indexes, the following code will compute that subset's encoding:

I've installed Windows 10 21H2 on both my desktop (AMD 5950X system with RTX3080) and my laptop (Dell XPS 9560 with i7-7700HQ and GTX1050) following the instructions on https://docs.nvidia.com/cuda/wsl-user-guide/index.html:

1. Install CUDA-capable driver in Windows
2. Update WSL2 kernel in PowerShell: wsl --update
3. Install CUDA toolkit in Ubuntu 20.04 in WSL2 (Note that you don't install a CUDA driver in WSL2, the instructions explicitly tell that the CUDA driver should not be installed.):

I'm going thru Get Programming with Haskell, and try to extend some examples. Having a problem for a function to get the maxBound of Enum:

For educational purposes, I would like to be able to first create a Hash for a String and then to create RSA Digital Signature from that Hash so that the result is the same as when using SHA256withRSA in one go. This way I want to confirm that I fully understand all the steps that are actually being done automatically for us when we call SHA256withRSA.

I also have one additional question. Is Digital Signature done on Hash or on Base64 Encoded Hash?

Below is the code that I am currently using and here is the output of the code which shows that these two approaches produce different signatures which means that I am missing soma manual steps.

I would need to be able to seek to a position before playback of a video is started with JavaFx 16

When MediaPlayers seek() or setStartTime() is called before play() it is breaking video output and no frames are updated anymore (sound is still playing).

The duration of the video is known and not indefinite. No errors are printed by the listener nor any meaningful stalling (only sometimes in the beginning when video is loaded via https), but the same issue appears for local files as well. So I think this can be ruled out. I am building and running the app with Maven, mvn clean javafx:run.

I tried to call those methods separately and also one after each other inside the ready listener and outside in the start method.

I am using JDK 11 (11.0.11+9-Ubuntu-0ubuntu2), maven 3.6.3 and openjfx 16 at GNU/Linux (Ubuntu 21.04)).

I assembled a minimal example and do I do anything wrong in the following code? Do you know how this could be handled or worked around? Thanks in advance.

App.java