Categories
Ask Mathematics

Suppose Uand W are subspaces of VsatisfyingV=U⊕W. Prove thatT:V=U⊕W→V v=u+w→u is a linear map that satisfiesT^2=T and range(I−T) = nullT

I already use the method of direct sum and rank-nullity theorem, but it does not work.

Categories
Development

TextField textProperty Listener across embedded scenes JavaFX

This may be a little convoluted but please bear with me. I have 3 scenes built using SceneBuilder. The first (“Main”) I am using as the parent scene. This scene contains 1 AnchorPane which holds a TabPane and a ToolBar which holds 3 Buttons (“Previous”, “Next” and “Close”). The second scene (“PersonaDetails”) contains an AnchorPane, […]

Categories
Development

TextField textProperty Listener across embedded scenes JavaFX

This may be a little convoluted but please bear with me. I have 3 scenes built using SceneBuilder. The first (“Main”) I am using as the parent scene. This scene contains 1 AnchorPane which holds a TabPane and a ToolBar which holds 3 Buttons (“Previous”, “Next” and “Close”). The second scene (“PersonaDetails”) contains an AnchorPane, […]

Categories
Development

How to use case_when for factor names

SA = c(“Argentina”, “Bolivia”, “Brazil”, “Chile”, “Colombia”, “Ecuador”, “Paraguay”, “Peru”, “Uruguay”, “Venezuela”) AF1 = gapminder %>% mutate( country, continent == case_when( country == SA ~ “South America”, TRUE ~ as.character(continent) ) ) I am trying to rename the country in SA to South America, but it does not work.

Categories
Development

How to fix build error when running “react-native run-windows”

Here is the result on prompt. I’m using a Windows 10 virtual machine inside Ubuntu and I already downloaded the dependencies in Visual Studio as the documentation says. √ Found NuGet Binary √ Restoring NuGets √ Found MSBuild v16.0 at C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\MSBuild\Current\Bin √ Found Solution: C:/Users/aders/Development/react/windowsapp/windows/windowsapp.sln Build configuration: Debug Build platform: x86 […]

Categories
CMS Development Magento

How to overwrite a payment method js renderer component?

Resolved: Seems the error has been caused by the requirejs and my lobster hands I rewrite a default Component and trying to extend it inside own component which rewrites a default component: recursion. Note: I know about this answer and it is good, but my question is about JS error when overwriting a renderer […]

Categories
CMS Development Magento

How to overwrite a payment method js renderer component?

Note: I know about this answer and it is good, but my question is about JS error when overwriting a renderer using my way. I’ve created a map for standard Magento offline payment method renderer: app/code/MageWorx/Checkout/view/frontend/requirejs-config.js var config = { map: { ‘*’: { ‘Magento_OfflinePayments/js/view/payment/method-renderer/purchaseorder-method’: ‘MageWorx_Checkout/js/view/payment/method-renderer/purchaseorder-method’ } } }; and here the my component in […]

Categories
Development

WordPress plugin folders default to 777 permissions

ENVIRONMENT: Kubernetes version: v1.16.3 OS: CentOS 7 Kernel: Linux k8s02-master01 3.10.0-1062.4.3.el7.x86_64 WHAT HAPPENED: I have a WordPress Deployment running a container built from a custom Apache/Wordpress image. I tried to upload plugins using the WordPress admin, but the plugin folders default to 777 permission. Plugin folders ONLY, not their files. Noticed that /var/www/html is set […]

Categories
CMS Development Wordpress

Execute Hook on the footer or header after activating a plugin

I have the following code fraction, but it does not work, I want that after activating a plugin this calls an action on the footer and prints something, but I can’t do it, the problem seems that the admin_footer does not run, I don’t know if actived_plugin is just before or after the html is […]

Categories
Cryptocurrency Development Ethereum

How to pass bool from one function to another?

I want two functions to be checked true or false in one contract, that is, I get true in the calculations and want something. The code below shows my idea, but it does not work, I do not know why. function transfer_money(uint _Number) pure public returns (bool){ //code return true; } function transfer_property(bool) private { […]