Categories
Linux Mastering Development Ubuntu

Not able to make SFTP changes in MobaXterm

I am new to this SSH thing, I am learning new things. I have using lightsail on AWS. I have installed Ubuntu 18 OS, with apache on it. I have logged in using Private SSH Key from AWS (.pem). I am able to make changes using the command line but I am not able to […]

Categories
Mastering Development

Implementation-defined Behavior in C

Please, can you report some example for implementation defined behavior in C? For example, I know from standard that “An implementation-defined behavior is the propagation of the high-order bit when a signed integer is shifted right.” Can you explain to me the significant of the example and report an example? I understand that int i; […]

Categories
Ask Mathematics

What are the two other Sylow $2$-subgroups of $S4$ besides $𝐻={(1),(12),(34),(12)(34),(13)(24),(14)(23),(1324),(1423)}.$ A different method please?

Please, please I ask that you do not refer me to the question that has been answered already: Sylow $2$-subgroups of $s4.$ I do not understand the bisections and what they are describing in that explaination. Rather I need help with a different method to finding the other 2 subgroups by way of using $\sigma […]

Categories
Apple User Help

how to install mac OS (Sierra) from USB drive, I am out of options

I have been fighting with this problem for some days now and I gave up solving it looking for a solution on google. I have a Macbook Air (late 2010) which had Lion. My gf wanted to pass it on to her cousin, so she cleaned everything, but she was not able to complete the […]

Categories
Ask Mathematics

How to prove that $2n\le2^n$

How to prove that $2n \le 2^n$ for any $n\in\Bbb{N}$? Could someone help me, please?

Categories
User Help

Programmatically close all tabs in Firefox Quantum

1. Summary I can’t find, how I can close all tabs in Firefox Quantum without any manual mouse clicks. 2. Details (Details for preventing XY Problem) I am working on several projects. I need always opened tabs for different projects (different tabs for different projects). When I start working on one of my projects, I […]

Categories
Mastering Development

The audio can’t be visible in firefox, but it work in chrome [closed]

firefox firefox can’t chrome chrome it’s working what should I do, please

Categories
Mastering Development

Can someone please tell me what ‘string line;’ is for in C++?

I am trying to write code and came across this declaration: string line; What does it do, please?

Categories
Mastering Development

Swift JSON decoding error: “Expected to decode Dictionary

I am a swift beginner, and I am having trouble decoding the following JSON (which is entirely enclosed in an array): [ { “symbol”: “AAPL”, “name”: “Apple Inc.”, “price”: 254.81, “changesPercentage”: 2.85, “change”: 7.07, “dayLow”: 249.4, “dayHigh”: 255.5, “yearHigh”: 327.85, “yearLow”: 170.27, “marketCap”: 1114915995648, “priceAvg50”: 281.9003, “priceAvg200”: 270.52628, “volume”: 37900589, “avgVolume”: 48846970, “exhange”: “NASDAQ”, “open”: […]

Categories
User Help

Port forwarding and triggering and so called Relay connection for NAS devices

After reading some questions and answers about Port Forwarding and triggering I feel a question. My question scenario: It seems that my ISP has provided a private IP for internet service at home where I have installed my Asus RT-AC68U router and a NAS (WD my cloud) device. My router WAN port shows a private […]