requirements – I get confused when I want to start mid sized projects. What should I do to get better?

I have been programming for about 10 years. I am good at the technology I work with. I have developed libraries that are used by other programmers in my work place. I can do rather complicated trouble shootings and many of my coworkers ask me to help them with their technical problems. I can implement programming tasks that have clear inputs and outputs reasonably fast and with reasonable quality. However I am very bad at understanding software requirements when I want to lead a project. I frequently miss important requirements, I am not good at interviewing the stakeholders, and organizing the requirements. And I am generally confused when I want to start a mid sized project and I don’t know from where I should start, how to plan the project and prioritize the objectives.

What can I do to get better? Are there any resources that can help me?

linear algebra – Confused about dimension

I’m confused cause if I have a vector (1,2,3) then it’s 3D since it has a value for x, y, z, but it’s only 1 vector so it can only span a line.

What is the dimension? Cause it’s only a line so I feel like it shouldn’t have a dimension of 3 but at the same time I wouldn’t be able to write that line on a paper.

What’s the right way to think about this?

Hello am flying to africa by qatar airways but am confused

Blockquote I’m flying to Africa with Qatar Airways. Baggage allowance shows as 30 kg but I was wondering if I can take two bags that weigh 23kg each instead of a single bag

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A bit confused about the time complexity of this theorem vs. my situation

In this paper polynomiality of n-fold integer programming problem is discussed.

(My question is very simple and it is stated at the end. There is no need to deeply understand the excerpts they are provided for the purpose of being complete.)

Excerpt 1:
The n-fold integer programming problem. Fix a $p times q$ integer matrix $A$. Given positive integer $n$ and integer vectors $b = (b^0, b^1, ldots , b^n)$ and $c = (c^1, ldots , c^n)$, where $b^0 in mathbb{Z}^q$, and $b^k in mathbb{Z}^p$ and $c^k in mathbb{Z}^q$ for $k = 1, ldots, n$, find a nonnegative integer vector $x = (x^1, ldots , x^n)$, where $x^k in mathbb{N}^q$ for $k = 1, ldots, n$, which minimizes $cx= sum_{k=1}^{n}c^k x^k$ subject to the equations $sum_{k=1}^{n} x^k = b^0$ and $Ax^k = b^k$ for $k = 1, ldots, n$.

Excerpt 2:
In this article, we establish the following theorem. Naturally, the input size is $n$ plus the bit size of the integer objective vector $c in mathbb{Z}^{nq}$ and the integer right-hand side vector $b in mathbb{Z}^{q+np}$.
Theorem 1.1. Fix any integer matrix $A$. Then there is a polynomial-time algorithm that, given any $n$ and any integer vectors $b$ and $c$, solves the corresponding n-fold integer programming problem.

My Question:
I have an Integer Programming at hand. For a given integer $k$, my $A$ (like above) is $3 times 2k$, and my $n$ (like above) is $k$, and let us assume that bit size of my integers is of $O(log (k))$. Is the aforementioned theorem still applicable to my situation? Especially because $q$ in my situation depends on $k.$

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apache – I’m really confused with my .htaccess config

My directory structure is

- Assets
- Dashboard
   - index.php
   - account.php
index.php
about.php
verify.php

What i basically want it to be:

  1. Remove the .php extension for example http://example.org/about.php should be http://example.org/about/ (including the trailing slash as well)
  2. If .php is encountered in the URL redirect it back to http://example.org/about/
  3. Instead of having the URL as http://example.org/verify.php?key=123456 it should be http://example.org/verify/123456
  4. Conditions to be met in sub directory as well for example http://example.org/dashboard/ should be the URL instead of http://example.org/dashboard/index.php

My .htaccess file looks like this

RewriteEngine On
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^((^.)+)$ $1.php (L)
RewriteRule ^verify/((0-9a-zA-Z)+).php /verify.php?key=$1 (NC,L)

<FilesMatch ".(jpg|png|svg|css)$">
Header set Cache-Control "proxy-revalidate, max-age=0"
</FilesMatch>


<Files .htaccess>
order allow,deny
deny from all
</Files>

Options All -Indexes

ErrorDocument 403 /404.html
ErrorDocument 404 /404.html
ErrorDocument 500 /404.html

Im really sorry for not giving much clarity.

I’m running it on localhost XAMPP web server.

  • Rule 3 and 4 works absolutely fine!
  • Rule 1 works fine but when it encounters the trailing slash it gives me a 404.
  • Rule 2 doesn’t seem to work.

networking – Confused about ping replies from Apache web server

I have a Raspberry Pi running Apache web server. I have configured it to run multiple sites – these are local only, they are not internet facing yet.

I have updated my host file on my Ubuntu laptop with the domains and IPs.

When I ping say domain1 I get a reply from domain1.

When I ping domain2 I still get a reply from domain1.

Can anyone explain why this is?

Thanks

I’m really confused with my .htaccess!

My directory structure is

- Assets
- Dashboard
   - index.php
   - account.php
index.php
about.php
verify.php

What i basically want it to be:

  1. Remove the .php extension for example http://example.org/about.php should be http://example.org/about/ (including the trailing slash as well)
  2. If .php is encountered in the URL redirect it back to http://example.org/about/
  3. Instead of having the URL as http://example.org/verify.php?key=123456 it should be http://example.org/verify/123456
  4. Conditions to be met in sub directory as well for example http://example.org/dashboard/ should be the URL instead of http://example.org/dashboard/index.php

My .htaccess file looks like this

RewriteEngine On
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^((^.)+)$ $1.php (L)
RewriteRule ^verify/((0-9a-zA-Z)+).php /verify.php?key=$1 (NC,L)

<FilesMatch ".(jpg|png|svg|css)$">
Header set Cache-Control "proxy-revalidate, max-age=0"
</FilesMatch>


<Files .htaccess>
order allow,deny
deny from all
</Files>

Options All -Indexes

ErrorDocument 403 /404.html
ErrorDocument 404 /404.html
ErrorDocument 500 /404.html

Tried out everything but nothing seems to work!

entities – Confused about Entity bundles

I’m trying to convert a Drupal 7 site to Drupal 9 before D7 reaches EOL, and I had a custom module that had a lot of custom tables defined in Hook Schema, that would be joined together in different ways to handle a multi-step form made with the ctools form wizard. This site was originally created in Drupal 6, and updated to Drupal 7 while doing the minimum changes to the custom modules, so it predates the concept of Entities. The database structure of those tables is normalized, in 3rd normal form, because if you flattened it, would your end with millions of rows with mostly redundant information. The problem was that those tables existed in their own microcosm, not accessible to the rest of the site.

I’ve decided to rebuild everything from the ground up when doing the site upgrade, and I’ve also decided to drupalize this so the contents of these tables can be accessed by regular views, avoiding content duplication. This means that every old table will have to have it’s own entity type. Fields will be basefields for performance, since I will need 50-100 fields in total, and every fiend added through the UI requires a join as far as I understand. If I need to add fields in the future, I will do it through a module update, not by adding them through the UI, so I don’t need the entities to be fieldable.

After giving you this context, my actual question is, if I will only ever need 1 type of every entity bundle, do I really need entity bundles? What would entity bundles do for me?