customization – Create a library of custom functions

I've tried creating a library of custom functions that I could simply call at the beginning of each notebook.

For example, suppose I want the following functions to be part of the library, or even that Mathematica sees them as part of the built-in set of functions.

cofactor[mat_, i_, j_] /; (And @@ wire[{i, j} <= Dimensions[mat]]): = (-1) ^ (i + j) * Det[Drop[#, {j}] & /@ Drop[mat, {i}]]; reverse element[mat_, i_, j_] /; (And @@ wire[{i, j} <= Dimensions[mat]]): = cofactor[mat, j, i]/ Det[mat];

I have not been able to find clear instructions in the documentation on how to proceed. I've tried to create an .m file, but when I use Import to include it in the notebook, the functions are not recognized.

How to create a pie shape on Draw.io?

I would like to create or find this shape on Draw.io, a pie shape that can be adjusted, size, length, etc.

Pie form

I could not find this shape in the list of shapes, so I think it should be created in one way or another, but I do not know how, especially with such a curved shape .

Product Photography – How can I economically create the white backdrop look?

I'm using a white sheet and a set of lighted clamps with daylight bulbs. (see What lighting material should I use with a very tight budget?)

It works best if you can put a little distance between the subject and the background, and the bottom line is that the background is well lit.

Basically, you are simply trying to expose for the subject and totally overexpose the background.

This photo was taken in front of an off-white wall in a dark room.

The bottle was sitting on a coffee can (you can see the lid) about 3 feet from the wall behind it. I pointed 2 lights toward the wall behind and used the punctual measurement on the bottle. The spot measurement has set the exposure on the front of the bottle and, as the background is brighter 2-3 times, it is completely overexposed.

As you try to get down to the ground, this becomes a bit tricky because you can not easily illuminate the background separately from the subject.

One thing to do is to use a white translucent Plexiglas sheet as a backdrop and to light it from the back. You will need brighter lights this way, but you should be able to achieve a similar effect with a flat surface.

web development – I am looking for ideas and suggestions to create the ideal programming company?

I am looking for ideas and suggestions for an ideal to create a programming business?

How to treat the programmer to put him at ease in the business?

Salary, commission, bonus, etc.

I'd like to know similar patterns in major Western and global companies and how they did it?

Please leave some ideas and suggestions 🙂

Best regards

Wadani

I need someone to create a list on our classified car sites

HI, I am willing to pay 10c per registration.

Basically, it will be a continuous job if done well and reviewed for salary increase.
We have more than 500 ads

Send me PM

How to create a Lightroom Smart Collection containing all virtual copies?

I want to create a smart collection containing all the virtual copies I've created. Is it possible to do this in lightroom?

Create 300 Google Map Quotations for $ 5 Local Search

  • Create 300 Google Point Card Quotes for Local SEO

Lists of local map points help improve Google ranking and local online commerce. Work is a link-juice center for your local SEO. I will submit details of your business in different local markets, a few kilometers from your area, pointing to your business. All show the details of your business.

Why do you choose my service?

Ranking in search engine results.

Manual work.

Quotes 100% Nap.

We offer a customer satisfaction guarantee.

Your business address appears in Maps

Please provide me with the following information

  • Name of the company:
  • Street address:
  • City:
  • State:
  • Postal code:
  • Phone number:
  • Website:
  • Professional email:
  • Business category:
  • Description of the activity:
  • Working hours:


This service does not have evaluation – order and leave first!


$5In stock

.

How to correctly create a skybox in Unity?

I have trouble creating a sky box from a panoramic texture. Everything seems to work. However, there are artifacts in the same place. How can I get rid of them?

enter the description of the image here

I can create professional and catchy thumbnails in 1 hour for $ 2

Dear customers, A thumbnail is the most important thing for a youtube video. If the youtuber succeeds and attracts more and more viewers, Thumbnail plays a major role in getting it, and the main problem faced by youtubers is that "Thumbnail takes a lot of time, the preparation of the sticker is very expensive and take more time., waste more time.If customers encountered such problems, thank you to say .. "Dear buyer, This is the best service for all your problems. Because … 1) I can create professional and eye-catching miniatures in just an hour. He can get more views in your videos. Thumbnails provide the perfect moment because customer satisfaction makes me happier.
2) I will provide thumbnails less than one hour, if that is not done (money back guarantee ..).
3) I have 4 years of experience in graphic design, which allows me to create eye catching and alluring images. Viewers are forced to click automatically and more and more viewers (100% GUARANTEED).
4) My youtube thumbnails are 1280 × 800
5) My message to all my clients. "Trust me, I am with you."
"NO COPY, ONLY PROFESSIONAL PATHS"



This service does not have evaluation – order and leave first!


$2In stock

.

sql – generate a query or create an inventory book and a balance

This is the first time I do this type of work and I need a theory on how to start doing this project in sql then run my procedure and pass it to the company. 39; ERP.
I have the task of creating or generalizing an accounting ledger and balance sheets – statement of financial position.
but I do not know how to start creating such a project.
I need advice, theory and even courses to start and continue with other things like this.
I hope you can help me.
thanks in advance, a big hug and good day to all