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I am learning Hotwire-rails, following both the gorails.com and the Hotwire.dev examples. I am running Ruby 3.0.2 and Rails 6.1.4.1. The symptom is at the very start. After rails new xxx, I edit Gemfile to add gem 'hotwire-rails', then bundle install. At this point my app/javascript/packs/application.js is now:

I would like to compute the slope/derivative of each zigzag line, and show them above/below the zigzag line. How to do this?

Example of zigzag:

I am doing a task to identify and count occurrences of specific words and phrases in medical Radiology text reports using regular expressions implemented in Python3.

I have regexes working for most of the words/phrases of interest but not for the word 'mass'. This is because the word 'mass' appears in lots of different contexts, some of which I wish to ignore and others I wish to count. I.e. I want to know when 'mass' described an abnormal structure present in the heart, but I don't want to know when 'mass' is being used to tell me the weight of the heart.

For example: "There is a 2mm mass in the RA" is valid "large irregular mass in the left ventricle" is valid "LV mass: 135g" is invalid "Normal heart mass" is invalid

For this I'm using negative lookahead to specify examples of words to ignore before 'mass'.

So after executing the following commands:

1. rails new sample_app
2. cd sample_app
3. rails db:create
4. rails generate scaffold User name:string email:string
5. rails db:migrate

and finaly when i run rails server i get:

Im running ruby version 2.6.1 with docker. Rake gem is version 13.0.1.
Whenever I tried docker-compose up, it always fails and throws this error everytime:
This error did not exist before.

I'm trying to build a Rails application on Mac OS Big Sur with the following versions ...

I'm trying to sort objects by key in my React App. I have an object (data) and string values(someString), I need to sort and filter my obj by its keys according to this someString's values and in the same order. So far I was able to filter and sort objects by key values from someString, the problem is that I don't know how to display values of the object after I sorted it by key, right now only keys are getting displayed.

My code is:

I'm having an issue converting image from byte YUV420p[] to byte RGB[] and then to a Bitmap.

This is method to convert from YUV to RGB that I'm using:

im working on a fluid simulator using opengl (implementing the sph algorithm). I've tried many methods to run my simulator, first i used octrees, after that hashmaps and now i am trying to use Z order, and for that i need to order my particles based on their index.

What i am having some trouble understanding is the fact that if i have one thrust::sort it takes 15 miliseconds, if i have two thrust::sort it takes 17 miliseconds.

For more clarification, i am doing my simulator in opengl (all my buffers are created using opengl), and i use cuda interops in order to sort my buffers with thrust, that uses cuda.

This is the part where i get my buffers and "link" them to cuda