UNZIP Multiple files at one in Ubuntu

Hi guys,

Just run the following set of command (each followed by enter) in a folder where you have zip files,

1. for z in *.zip
2. do
3. unzip $z;
4. done

Here is the way I did the job,

bhavin@bhavin-Aspire-A315-51:~/Dropbox/60001/2$ for z in *.zip
> do
> unzip $z
> done

In order to extract 7z, rar or tar.xz files, just do the following replacements,

1. *.zip
    *.tar.xz
    *.rar
    *.7z

3.  unzip
     tar -xf
     unrar e
     7z e

Computational Number Theory and Python

Here is something that you might wanna read,


http://illustratedtheoryofnumbers.com/prog.html

https://mathoverflow.net/questions/100925/computational-number-theory

My God, how the heck I know if it is der, das or die!!!!

Ever wondered in that complicated class of articles. Well, here is something to rescue you,

https://www.thoughtco.com/masculine-feminine-or-nueter-in-german-4068442

Harvard offers a course on Data Analysis and Mathematics

https://online-learning.harvard.edu/

Convert PDF to JPG or PNG

Check the following,

https://askubuntu.com/questions/50170/how-to-convert-pdf-to-image

Some references on Finite Fields

Friends, here are some notes that I found interesting on a subject,

https://math.mit.edu/classes/18.783/2019/LectureNotes3.pdf

https://web.stanford.edu/class/ee392d/Chap7.pdf

Irreducibility of $x^p-x-a$ over a field $F$ of characteristic $p$

Check out,

https://math.stackexchange.com/questions/136164/problem-in-jacobsons-basic-algebra-vol-i/136184#136184

Is every primitive element of a finite field has to be a generator of a multiplicative group?

Well, the answer depends upon the interpretation of the term $primitive element$. As in the famous book by Lidl and Niederreiter, the answer is yes. But if one defines primitive element to be just an element as in the definition of a separable field extension, the answer is negative. One can see this well explained at,

https://math.stackexchange.com/questions/2958747/is-every-primitive-element-of-a-finite-field-of-characteristic-2-a-generator