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How to Convert or Solve a Non-Linear Optimization Problem with Non-Linear Objective Function & Constraints

Overview I am working on an order allocation problem with variable and fixed costs. The initial formulation of this problem was a linear optimization, but when

Docker container with shiny app listening on localhost

I am working with a linux server and I would like to run a docker container with my shiny app, but it is not working. In order to check the problem, I have run

Using EF Core with WPF and I'd like to revert to initial state when a user press Cancel instead of OK on a dialog, is that possible and how?

I'm using EF Core with WPF and I'd like to revert any changes done on any objects to their initial state when a user press Cancel instead of OK on a dialog, is

removeClass('data-element="xxx"'); not working

I have html code like this: <div class="smt" data-smt="41" data-element="do"> how I can remove this special attribute [data-element]? I trying like this,

How do I determine the correct path for FXML files, CSS files, Images, and other resources needed by my JavaFX Application?

My JavaFX application needs to be able to find the FXML files to load them with the FXMLLoader, as well as stylesheets (CSS files) and images. When I try to loa

Laravel: Feature test json validations unique rule issue

I recently started implementing the unit testing in Laravel 9.x framework. So far, I was able to write some basic rules without any complications. However, in m

Entity Framework Core child entities only show up when I debug through code

I'm having this really weird scenario where I have a component in MVC that will call a service to grab all the categories in the database and include its child

How to map a subarray

I am using a sample I found online to map a subarray and can't seem to get it to work. import { Component, OnInit } from '@angular/core'; @Component({ select

S3ToGCSOperator : Connection error while getting file from S3 to GCS

I have been trying to source data from S3 bucket to GCS with provided operator: S3ToGCSOperator. Below is the error I am getting: ______________________________

Is it possible to know the size of a variable that is being created while the function is running?

I am very new to R and I was exploring a function in a library that download data from a server and leaves the data as dataframe. The data are stored in a varia

enhanced subscription filtering connection error when using amplify-cli generated GraphQL mutations

I am using amplify-cli with angular front-end. I have the following schema (schema.graphql): type CardDeck @model @key(name: "byBoard", fields: "boardId", query

Cannot register alias 'springSecurityFilterChain' for name 'org.springframework.security.filterChainProxy'

Getting this error when I start my application. WrapperJarApp Error: Caused by: java.lang.IllegalStateException: Cannot register alias 'springSecurityFilterChai

Can I use printf in an Android native binary

Let's assume the phone is rooted and arm binaries can be installed. Can I make a console binary using Android Studio with printf output? Is there a step-by-step

Is there a good way to cache apt and pip packages on my home network without changes to my clients?

I am testing and building a lot of containers over a somewhat slow internet connection. Every time I test a rebuild it has to re-download all the apt and pip pa

How to check authorization before loading Route Model Binding

I ask this question after doing various searches without finding any clarifying information that helps me solve the problem that I am presenting. I have created

geometric operations on QML `point` type

Consider a variable of type point: it doesn't seem to have the same methods as vector2d. E.g.: readonly property point distance: pos.minus(referencePos).length(

C flexible array define with another type instead of malloc

the general usage of flexible array is to use malloc to define the flexible array. I'm trying to explore defining the flexible array with another struct. An exa

Align items horizontally in a list of buttons

I'm a beginner in Front-End programming, and I'm trying to figure out how to align horizontally items, I tried out several methods but never got to the right re

Outlook add-in does not work in certain execution environments

I'm having a problem with my product. Does anyone know the cause? And please tell me the solution to this problem. Execution environment 　Outlook2019 bui

I want to create an object from two different object, one is parrent object and another one is supposed to be a child

I want to create a new object from two different objects with a relational field in the child object is Section__c in relation to the Parent object Id. My paren

How to Visualize Time series graph's X axis from relative zero instead of real time point using Grafana

I am trying to generate grafana time series graph. Below is an example- The time points on x axis shows real time when the data was taken. I want to start the

XHR handling behavior between port 443 and non-standard port

UPDATE: It appears the problem is triggered when port 443 is explicitly specified. If I leave it out, no errors. For example: <!DOCTYPE html> <html&g

MySQL Get same yesterday day of previous week data

Let say yesterday was Wednesday; I need to get all records for Wednesday of previous week. How to achieve this in MySQL statement condition?

Spring Boot context-path doesn't return index.html in tests

I want to test that GET "/" returns index.html (Which is the case in a build) but when I try that in an integration test I get 404 NOT FOUND. Here's how I test:

Writing to a JSON file from an electron web app

Using electron I have made an app that can generate 6 arrays that create a frame for an animation, these arrays are going to be interpreted by another program t

Why does Ubuntu WSL shows error when checking heroku version?

I have heroku installed in C: drive. I also installed heroku in my Ubuntu WSL. When I try to check the heroku version it shows: /mnt/c/Program Files/heroku/bin/

How to Convert or Solve a Non-Linear Optimization Problem with Non-Linear Objective Function & Constraints

Overview I am working on an order allocation problem with variable and fixed costs. The initial formulation of this problem was a linear optimization, but when

Flutter : init called

I'm trying to work on my fantasy app, and the app is working fine, but as soon as I open the keyboard to type something, I'm getting a message in debug console

Entity Framework Core child entities only show up when I debug through code

I'm having this really weird scenario where I have a component in MVC that will call a service to grab all the categories in the database and include its child

Using python 3.10, but pylance still says "alternative syntax for unions requires python 3.10 or newer?"

So I just upgraded python to 3.10 for the new features, and when I do import sys; sys.version using the ipython console in vs code, it prints python version 3.1

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