magnet | Dependency injection for modular Android applications | Android library

I am trying to plot stock price data for a ticker using lightweight-charts.I can use it in expected way to draw chart for intervals like 1w, 1 month or 3 month etc. But Chart is not drawn as expected for one-day data.

Here are my part of code :

Very new to Phaser so I think I might be fundamentally misunderstanding something.

My game is supposed to be a clone of 'Jetpack Joyride' where the player jumps to avoid obstacles and collect coins etc.

I am currently trying to create a powerup which makes all of the coins on screen zoom towards the player (and therefore collect all of the coins).

I have used the this.physics.moveToObject function but it always gives me the error: 'Uncaught TypeError: Cannot read properties of undefined (reading 'velocity')'.

My thinking is that this function can't pull multiple objects at once - or it isn't able to 'locate' all instances of 'coins'(perhaps because of the way I have set up the random generation of them).

This could also be something to do with a basic syntax error on my end.

One issue I have noticed is, I need to actually destroy the sprites as they go off the screen - but not sure this is related to the above.

Anyway, any help is appreciated!

I want to populate a huge sparse matrix in python, with the aim to implement Crank-Nicolson numerical method in 2D.

I did it by lopping through all the interior nodes using two nested for loops, but it is extremely slow. Because it is a nested for loop with matrices, I thought of Numba, but it doesn't work with sparse matrices. I cannot convert the matrix to a dense format before passing it as an argument to a numba-jitted function, because of memory issues.

I want to ask what shall I look for in order to make the function populating the A matrix below quicker?

I tried with scipy.sparse.diags, but I again ended up using two nested for loops, just as in the (naive) code below.

The problem is that the k value is computed from i and j, and I don't know how to manipulate it without the double for loop.

The code which populates the A matrix with the double for loop is:

I am using lightweight-charts for drawing financial charts for stock data.

A part of code for drawing chart is:

I have this code in which I am trying to fit a model of a neural network which has just three layers: the input layer, a hidden layer and, at the end, the ouput layer which must have just one neuron for the single ouput. The problem is that when doing the fit I'm always obtaining the same values for the accuracy (null) an the loss (remains constant), and I've tried changing the optimizer from 'sgd' to 'adam' and still anything works as it should be. What would you recommend?

I have created a page with multiple images which when hovered over, fade away and a button appears over the top. The button then hides and the image reappears when the cursor is moved away. I wanted to do this using JQuery to improve my skills. I am fairly new to coding, so would really appreciate some direction on the problem.

I have been able to do both of these things, however;

1 - the button appears on all images (there are 6 in total) rather than just the one that is being hovered over.

2 - when I hover over the button, it and the background image begin to flash. If I click the button, the flashing of the button and image continues.

I believe these is due to how I am targeting the button specifically, but I cannot seem to get it right using the ‘this’ way of targeting. Is this correct or am I missing something very important?

Thank you for your help!

I need to work with a Delphi written DLL provided by a hardware vendor. In the document provided, it mentioned the below

I am creating a game using Inform7 that takes place on a space station. I would like to have the directions be fore, aft, port, and starboard rather than the standard compass points. I've used understand as to get most of them redefined successfully. But I am stuck when it comes to using 's' as an abbreviation for starboard, and not south.

The code I have thus far is shown below. Notice the line: Understand "st" as starboard. This is a workaround and not what I really want. What I want is 's' as an abbreviation for starboard only. If I change this line to Understand "s" as starboard., the interpreter still thinks the 's' abreviation could be for south, and replies with Which do you mean, the south or Starboard?.

How can I get Inform7 to forget about south and only apply 's' to starboard?

I am aware how to get the orientation angle between the y-axis of the phone and the magnetic north using the getOrientation method (as described here https://developer.android.com/guide/topics/sensors/sensors_position). However, I would need the orientation between the z-axis of the phone and the magnetic north, so to get the direction of the phone's camera. I have tried writing my own code to calculate this angle from the angle between the y-axis and the magnetic north, but it gives me unreliable data, even if corrected with the gravity sensor data (e.g. when the phone is flipped over).

Is there a way to directly get the angle between the z-axis and the magnetic north?