Weekly post 20

Fri, 20 May 2022 18:30:00 +0000

This is a weekly post that is required by the rules for maintaining a personal project. This post was written on May 20, 2022, and covers week 20, 2022.

How was the week

During the week, one of the non-standard circumstances was the control work on the subject “programming technology”, where it was necessary to implement some operations on lists and arrays. This was somewhat complicated by the fact that the results of the work had to be written on paper.

Key insights

Depending on the transmission medium used, the uptime of systems can be much more or much less than the uptime of communication lines - in the case of a cellular network, the systems reboot more often, and in the case of Wi-Fi, the link itself reboots more often.
The OpenWRT configuration interface does not support specifying specific DHCP server directives, and they may need to be set through manual editing of configuration files
The sampling rate at which an oscilloscope operates can have a disproportionate effect on the signal content it measures.

Main insight

!( sizeof(long long) > sizeof(long) )

What failed to do

I did not have time to do a full-fledged comparative analysis of 3D printers, which is necessary to determine the most rational choice for our project.

Work on mistakes

As before, you need to create a stable task scheduling scheme that would not be disturbed by small changes from the schedule, as well as create a backlog of tasks so that they can be effectively scheduled, delegated or postponed.

Working with bibliographies

Fri, 20 May 2022 18:30:00 +0000

A bibliography is a set of records about the literature that was used in the preparation of a document. It serves as a way to cite past work on the topic and to provide links to sources for further information.

Usually the bibliography is printed at the end of the document, and sometimes there are references to certain entries from the text of the document. For example, if I wanted to say something that can be read about in a certain book, I would write something like:

On systems that support this, the name of the TeX markup language must be written in full capital letters, but the letter E should be shifted down from the baseline (see [TEXBOOK]).

After that, in the bibliography part, I would write:

[TEXBOOK] D.E. Knuth, D. Knuth, D. Bibby, and American Mathematical Society. The TeXbook. Computers & typesetting. Addison-Wesley, 1986.

With this information, the reader of my document can go to the library to find this book and read the part I am talking about in the text.

Such records can be written by hand, but this quickly becomes inconvenient as the number of sources increases. Therefore, scientific writing systems like TeX have mechanisms for managing bibliographies.

For example, BibTeX uses a file containing records of the sources used. The same book will be written in it as follows:

 @book{knuth1986texbook,
  title={The TeXbook},
  author={Knuth, D.E. and Knuth, D. and Bibby, D. and American Mathematical Society},
  isbn={9780201134476},
  lccn={85030845},
  series={Computers\& typesetting},
  url={https://books.google.ru/books?id=zqgQAQAAMAAJ},
  year={1986},
  publisher={Addison-Wesley}
}

This machine-readable format stores information that will then be included in the entry in the bibliography. However, you may notice that not all fields were included in the record. This is because the bibliography entry template I used does not use this information. If a document is published in a journal or other publication, this publication will certainly have its own style of bibliography; if you select this style in the BibTeX settings, the record will look different.

BibTeX is one of the bibliography management systems. There are others like EndNote, Mendeley, RefWorks, Zotero, etc. They differ in their interface, supported citation formats, supported data attachments, etc., but most have BibTeX export options. Using such systems, it is possible to structure the set of literature used in the text, which makes it possible to write scientific articles with the correct references quickly and conveniently.