Intro to LaTeX **Full Tutorial** Part II (Equations, Tables, Figures, Theorems, Macros and more)

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  • เผยแพร่เมื่อ 16 ต.ค. 2024

ความคิดเห็น • 145

  • @DrTrefor
    @DrTrefor  3 ปีที่แล้ว +22

    If you didn't catch Part I in the series that introduced the basics you might want to go back and check it out here: th-cam.com/video/Jp0lPj2-DQA/w-d-xo.html&ab_channel=Dr.TreforBazett. My huge thanks to @Overleaf for #sponsoring today's videos. Overleaf is truly an awesome platform that makes writing LaTeX so.much.easier. so check them out at overleaf.com. Two more videos in this series coming soon:)

    • @DrTrefor
      @DrTrefor  3 ปีที่แล้ว +2

      Part III coming in sept:)

    • @DrTrefor
      @DrTrefor  3 ปีที่แล้ว +1

      @Naman 🅥 Two weeks from today:)

    • @aashsyed1277
      @aashsyed1277 3 ปีที่แล้ว

      @Naman 🅥 hi how did u highlight your v
      ?

    • @aashsyed1277
      @aashsyed1277 3 ปีที่แล้ว

      @Naman 🅥 oh ok

    • @1potdish271
      @1potdish271 2 ปีที่แล้ว

      Could you please provide link to latex playlist!!! I cannot find playlist on your channel playlist. Thank you :)

  • @No1ze3
    @No1ze3 3 ปีที่แล้ว +80

    I remember I had to learn LaTeX at the beginning of the pandemic just to send my math homework. These kind of videos help A LOT. Thank you :3

    • @DrTrefor
      @DrTrefor  3 ปีที่แล้ว +8

      You’re most welcome!

  • @zharfantasy
    @zharfantasy 2 ปีที่แล้ว +18

    I love your energy Dr.! Thanks for this amazingly enjoyable video despite being 30 minutes long :)

  • @TSSPDarkStar
    @TSSPDarkStar 3 ปีที่แล้ว +25

    So many compliments to give I don't know if i can put it in one comment. Here I am trying to learn LaTeX for my physics courses this year, and i happen upon your first video in the series. Already INSANELY informative, lots of great tips and tricks, very beginner friendly, really got me excited about learning how to use LaTeX more. THEN i just so happen to see you somewhat recently post THIS and its 10X BETTER THAN THE FIRST ONE WHICH WAS ALREADY SO GOOD?! You really stepped up the video quality too from last year. Its definitely noticeable and appreciated and gives the video that extra smoothness and polish. The subtle camera movements to focus in on the important bits are *chefs kiss*. Not to mention you yourself are engaging and funny at the same time to match the utility of the content. Way to go, earned my sub, really hope you keep it up!

  • @tofumakesvideos
    @tofumakesvideos 18 วันที่ผ่านมา +1

    Love the passion and energy you emit! Please never stop being enthusiastic :)

  • @JimSmithInChiapas
    @JimSmithInChiapas 2 ปีที่แล้ว +9

    These are good tutorials that teach how to do truly useful things, and will save new LaTex users a lot of time.

  • @Akhan-xu2xr
    @Akhan-xu2xr ปีที่แล้ว +8

    Always interesting and clear. Thank you Prof

  • @muhammadnaqib461
    @muhammadnaqib461 ปีที่แล้ว +3

    Thank you Dr. Trefor!! Your Tutorial is very interesting and easy to understand, you really help me understanding LaTeX!! You deserves the world Dr. Trefor!!

  • @chouthuysen
    @chouthuysen 2 ปีที่แล้ว +7

    This was so helpful! I’m currently using your tips in my JANNAF papers and dissertation write-up :) please keep making these videos if you have the time.

  • @ausaramun
    @ausaramun ปีที่แล้ว +2

    I'm beginning my LaTeX journey all thanks to you! :)

    • @DrTrefor
      @DrTrefor  ปีที่แล้ว +1

      Fantastic!

  • @ilpreterosso
    @ilpreterosso ปีที่แล้ว +1

    Ur my savior when I was writing my report bro, thanks a bunch

  • @hrkalita159
    @hrkalita159 3 ปีที่แล้ว +9

    First of all,I shocked how many equations of e he knows😂, really really great video ❤️🙏,make some more.

    • @DrTrefor
      @DrTrefor  3 ปีที่แล้ว +3

      Haha there are so many more:D

    • @MaryJossty
      @MaryJossty 2 หลายเดือนก่อน

      Hello 👋

  • @garthreid355
    @garthreid355 2 ปีที่แล้ว +1

    Thanks Alot Dr. Bazett for creating these videos on LaTeX.

    • @DrTrefor
      @DrTrefor  2 ปีที่แล้ว +1

      My pleasure!

  • @arnavbhavsar8567
    @arnavbhavsar8567 3 ปีที่แล้ว +4

    Thank you so much doc. I knew about LaTeX earlier but I've learned a lot from this video

  • @saidfarid6382
    @saidfarid6382 ปีที่แล้ว +2

    Hi dear professor
    Thank you so much for your help and advice.
    I really appreciate your job. I wish you peace and happiness under the sky of prosperity.
    All the best.
    Have a good time.
    Your follower from Algeria

  • @GoatzAreEpic
    @GoatzAreEpic 3 ปีที่แล้ว +4

    Looking forward for part 3!!!!

  • @zachpence8283
    @zachpence8283 3 ปีที่แล้ว +5

    Fun fact: in overleaf you can do the keyboard shortcuts for formatting (e.g. Ctrl+B for bold) and it will automatically type the syntax to create a bolded statement

    • @DrTrefor
      @DrTrefor  3 ปีที่แล้ว +3

      How did I not know this?!?!?!?!? Of course they did that lol

    • @aashsyed1277
      @aashsyed1277 3 ปีที่แล้ว

      Ok.

    • @aashsyed1277
      @aashsyed1277 3 ปีที่แล้ว

      @@DrTrefor mention these in your new videos about overleaf!

  • @BlijVrouw
    @BlijVrouw 2 ปีที่แล้ว +3

    This is awesome. Thank you.

  • @StaticBlaster
    @StaticBlaster 3 ปีที่แล้ว +8

    If you know topology, you should consider making a tutorial series on basic general topology and possibly work your way through more advanced concepts like algebraic topology and differential topology, manifolds, etc. That would be cool. Thanks for considering this.

    • @DrTrefor
      @DrTrefor  3 ปีที่แล้ว +6

      I actually plan to do this! I have a video on the very basics of algebraic topology with @tomrocksmaths coming out maybe next month, then more to come after that:)

    • @StaticBlaster
      @StaticBlaster 3 ปีที่แล้ว +2

      @@DrTrefor Awesome bro! I love math and physics! I can't wait.

  • @xiangli2944
    @xiangli2944 3 ปีที่แล้ว +1

    Thank you ! The two vedios are pretty good, presenting abundant things in short time. I'll recommend the two videos to my friends.

  • @serk-s
    @serk-s 2 ปีที่แล้ว

    Okay, you helped me a lot. And in the context of this and the first part of this tutorial, you said several times, that we shall subscribe. You got me. I subscribed haha

  • @wjrasmussen666
    @wjrasmussen666 3 ปีที่แล้ว +1

    I just looked at the first LaTeX video the other day and hoped you would do more. Now you are doing a series!!! Can we make requests?

    • @DrTrefor
      @DrTrefor  3 ปีที่แล้ว +1

      haha sure!

    • @wjrasmussen666
      @wjrasmussen666 3 ปีที่แล้ว

      @@DrTrefor Thanks. Requests: 1) natural deduction proof in predicate logic using the fitch-style system. 2) Freshman calculus based physics: Free body diagrams, vector diagrams, Newtonian motion diagrams: pendulums, ramps, etc.

  • @YourAashique
    @YourAashique ปีที่แล้ว +1

    This is looks like magic!

  • @CKPSchoolOfPhysics
    @CKPSchoolOfPhysics 3 ปีที่แล้ว +1

    Omg!! Today I thought of the same and saw this notification. ❤️❤️❤️ Height of coincidence.

    • @DrTrefor
      @DrTrefor  3 ปีที่แล้ว +2

      ha that's awesome timing:D

  • @dasunpremathilaka8703
    @dasunpremathilaka8703 2 ปีที่แล้ว +9

    Great work on the videos doctor. Really intuitive. As a beginner, I just have a couple of questions. How did the figure and the table get inserted before the 'More Tricks' section even though we have included the new section before writing the code for the table and figure? How can we insert the table and the figure after section title? And the last question is, why was 'I am so proud of figure...' indented?

    • @martinllorensgimenez7272
      @martinllorensgimenez7272 2 ปีที่แล้ว

      im starting with latex rn and i'm having this problem, do you have a solution yet?

    • @ooloncolluphid9975
      @ooloncolluphid9975 2 ปีที่แล้ว +2

      \begin{table}[hp]
      seems to do the trick, idk exactly why tho

  • @StaticBlaster
    @StaticBlaster 3 ปีที่แล้ว +7

    and also maybe real analysis, complex analysis, tensors, etc. That's if you know all that. Some of those mathematical subjects has close ties to theoretical physics. That's essentially what I want to get into. I find concepts of GR. QM, QFT, quantum gravity, and string theory to be quite fascinating.

    • @DrTrefor
      @DrTrefor  3 ปีที่แล้ว +5

      My background actually is in physics before I left to the darkside of math haha:D

    • @StaticBlaster
      @StaticBlaster 3 ปีที่แล้ว

      @@DrTrefor Awesome. It would be great if you made a lecture series on these advanced mathematical subjects. What in particular did you study when you were in the physics world?

    • @elltwo8393
      @elltwo8393 3 ปีที่แล้ว +1

      As far as I know, the math with the closest ties to quantum stuff in physics is operator algebras/operator theory, which is a beautiful subject in its own right and contains one of my favourite theorems (the Gelfand-Naimark transform which gives a contravariant equivalence between the category of compact Hausdorff spaces and the category of commutative unital C*-algebras), but probably requires too much background knowledge to fully understand (i.e. measures and integration as well as basic functional analysis) for it to be accessible in a TH-cam series right out of the gate.

    • @StaticBlaster
      @StaticBlaster 3 ปีที่แล้ว

      @@elltwo8393 Cool. And of course probability theory too. These sound extremely advanced but nonetheless very interesting. Update: Oh yeah and also lie algebras and lie groups which also has ties to fractal mathematics, I think.

    • @DrTrefor
      @DrTrefor  3 ปีที่แล้ว

      @@StaticBlaster I just did my BSc in physics. But then in math I did a bunch of symplectic geometry which has a lot of overlap both for classical mechanics and string theory

  • @CKPSchoolOfPhysics
    @CKPSchoolOfPhysics 3 ปีที่แล้ว +1

    When is 3rd video coming? I am dying to watch asap. Already started writing and just loving it .

    • @DrTrefor
      @DrTrefor  3 ปีที่แล้ว +2

      About two more weeks sorry!!!

    • @TSSPDarkStar
      @TSSPDarkStar 3 ปีที่แล้ว

      @@DrTrefor Hello Professor, I know doing things like this video can take a while to make so obviously no rush especially since you have other projects to work on presumably, but do you have an updated estimate on when there will be more videos in this series?

  • @JJGhostHunters
    @JJGhostHunters ปีที่แล้ว +2

    Hello Dr. Trefor...Is LaTeX recommended for writing entire papers, dissertations, etc over Word or is it better suited for just writing equations and then inserting them into Word or similar word processor? It would seem that Word would be more efficient in terms of formatting the text portions of papers. Perhaps I am wrong though.

  • @deltax7159
    @deltax7159 2 ปีที่แล้ว +1

    You look like the math gate keeper in this thumbnail lol. “ you must answer my riddle to pass small child!” 🧙‍♂️

  • @larrytrahan8260
    @larrytrahan8260 2 ปีที่แล้ว

    Bị nghiện bài này từ thời Bảo Thy, ko ngờ lại có ngày được nghe idol mới trong lòng mình Đức Phúc cover lại. Cảm ơn em ĐP vì đã cover lại lắng đọng cảm xúc như vậy

  • @koustavmallik6583
    @koustavmallik6583 2 ปีที่แล้ว +2

    Respected Dr. Bazett, Thank you for helping me use Overleaf beautifully and efficiently. Regards, Koustav Mallik B.Stat 1st year Student

    • @koustavmallik6583
      @koustavmallik6583 2 ปีที่แล้ว

      Can you please help me cross referencing theorems? in Latex?

  • @codingWorld709
    @codingWorld709 2 ปีที่แล้ว

    Your video is very useful to learn

  • @asnighoshdastider1971
    @asnighoshdastider1971 หลายเดือนก่อน

    THANK YOU SO MUCH!!

  • @sakurasadkj5839
    @sakurasadkj5839 2 ปีที่แล้ว +1

    fine video!

  • @edoardoferretti5493
    @edoardoferretti5493 2 ปีที่แล้ว +2

    Why is the figure put above the section it's in? How can I position it where I want it to be?

    • @DrTrefor
      @DrTrefor  2 ปีที่แล้ว +3

      By default, it lets LaTeX decide the best way to visually display it on the page, but yes you can force it to an exact location if you want. But sometimes this has weird effects like an awkward pagebreak so it is usually the LAST thing I do when polishing a document.

    • @edoardoferretti5493
      @edoardoferretti5493 2 ปีที่แล้ว

      @@DrTrefor ok, thank you now it's clearer

  • @aashsyed1277
    @aashsyed1277 3 ปีที่แล้ว +1

    Awesome explanation , are there more videos on latex ? If then tell me but if not take your time and make more!

    • @DrTrefor
      @DrTrefor  3 ปีที่แล้ว +1

      Two more coming at least!

    • @aashsyed1277
      @aashsyed1277 3 ปีที่แล้ว +1

      @@DrTrefor great 👍

  • @alexanderseaordaya4683
    @alexanderseaordaya4683 ปีที่แล้ว

    Thank you mr. Fantastic

  • @kishoreseshadri5579
    @kishoreseshadri5579 2 หลายเดือนก่อน

    How would I go about getting the source LaTex document you create in the video? On Overleaf or elsewhere? Thanks for a wonderful series

  • @muhammadadil3981
    @muhammadadil3981 2 ปีที่แล้ว

    Thank you very much sir ..... sir can you make a video for setting exam papers that contains MCQs, true falls, and question?

  • @zhyanmrdn2580
    @zhyanmrdn2580 2 ปีที่แล้ว +1

    Thx👍👍👍👍

  • @dgm5208
    @dgm5208 3 ปีที่แล้ว +3

    I like your theorem numbering by Section --how do you do the same with equation, figure and table numbering, please?

    • @DrTrefor
      @DrTrefor  3 ปีที่แล้ว +4

      Ah great question, should have put that one in. There is a command (needs amsmath) and goes within the preable:
      umberwithin{equation}{section}. The first braces say the object you are want to number and the second what you use to do the numbering (could be chapter or subsection or whatever else).

    • @dgm5208
      @dgm5208 3 ปีที่แล้ว +2

      @@DrTrefor impressive response time! Thank you!

  • @thomasgebert6119
    @thomasgebert6119 3 ปีที่แล้ว +2

    Out of curiosity, what is your opinion on the other TeX overlays (e.g. ConTeXT, LuaTeX, XeLaTex)? I know LaTeX well enough, but occasionally it's gotten annoying if I ever want to do non-standard formatting.
    Someone told me that ConTeXT is better for that type of stuff but I haven't used it yet.

    • @DrTrefor
      @DrTrefor  3 ปีที่แล้ว +1

      Honestly I haven't used either of them, but the general sense I have is each has some aspects that it does particularly well, and if that aspect is something you really care about then it might be worth it. But the default is to stick with vanilla.

    • @thomasgebert6119
      @thomasgebert6119 3 ปีที่แล้ว

      @@DrTrefor Fair enough. For 99% of stuff, LaTeX is fine (well, Pandoc->LaTeX anyway), but occasionally I've had to do more elaborate stuff, and I've found CSL to be extremely annoying, and I've never really gotten the hang of it.

  • @marcello4258
    @marcello4258 2 ปีที่แล้ว

    would also be nice to see how you could change the spelling of those things like theorem so you could also take full advantage of this when writing in another language

  • @peeper2070
    @peeper2070 2 ปีที่แล้ว +1

    15:30 My table does not have the left and right borders. I expect someone to reply months from now but I’m just commenting this in case someone in 2038 has a similar problem. Here is my code:
    \begin{center}
    \begin{tabular}{c|c}
    \hline
    1 & 2 \\\hline
    3 & 4 \\\hline
    \end{tabular}
    \end{center}

    • @smoban
      @smoban หลายเดือนก่อน

      u did c|c, if you wanted borders on the left and right you should have done |c|c|, lol

  • @naveenminhas7524
    @naveenminhas7524 2 ปีที่แล้ว

    nice tutorial

  • @myexcel2009
    @myexcel2009 9 หลายเดือนก่อน

    Thanks

  • @JakhongirShirinov
    @JakhongirShirinov ปีที่แล้ว

    Great job

  • @gedeardaunud1361
    @gedeardaunud1361 ปีที่แล้ว

    hai... i am not sure, do you still monitor this video..but this is great video. it helps me a lot when I am starting write my book using latex..thank you so much for sharing this...could you help me how to make piecewise function?? I combine begin split, along etc..but it does not work... thanks...

  • @sdl9258
    @sdl9258 ปีที่แล้ว

    Excellent.

  • @TheRealLaoTuo
    @TheRealLaoTuo 2 ปีที่แล้ว +1

    How come that table is not _in_ that section? it is defined after the section..

  • @ASdniindSA
    @ASdniindSA 2 หลายเดือนก่อน

    Is it possible to use
    ewtheorem for Theorem and Lemma, with continuing number? I mean Theorem 1.1 and then Lemma 1.2 something like this

  • @saadhassan9469
    @saadhassan9469 ปีที่แล้ว

    Good Videos

  • @codingWorld709
    @codingWorld709 2 ปีที่แล้ว

    Is overleaf not available to install ??
    Sir,
    It's difficult to use in poor Internet connections

  • @vasuaggarwal2334
    @vasuaggarwal2334 2 หลายเดือนก่อน +1

    respect++++++++++++++++++++++++++++++++++++++++++++++++++++++ for this guy..

  • @ryanhuon4094
    @ryanhuon4094 2 ปีที่แล้ว +1

    I have a warning of Overfull \hbox (6.18759pt too wide). How can I solve that ? Thank you

    • @DrTrefor
      @DrTrefor  2 ปีที่แล้ว +1

      This just means you have a line that is too wide so it throws the warning. So why is your line too wide? Well that really depends on the code but often things like side by side images of fixed width that adds up too much or things like this cause the problem

  • @md.minhajuddinturjo4337
    @md.minhajuddinturjo4337 ปีที่แล้ว

    How can I place the table and figure inside the section, "More Tricks"?

  • @tincho15neem
    @tincho15neem 2 ปีที่แล้ว

    Forget about all this. LyX is the future.

  • @DFivril
    @DFivril 6 หลายเดือนก่อน

    Call me crazy, but i love LaTeX

  • @jacoboribilik3253
    @jacoboribilik3253 หลายเดือนก่อน

    God bless this guy.

  • @chirineberri4581
    @chirineberri4581 3 ปีที่แล้ว +1

    thank you so much it's too useful, but i have a question : in the section of theorem and proof how can i write it in french ? for exemple if i want to write "preuve" instead of "proof" and "corollaire" instead of "corollary".

    • @DrTrefor
      @DrTrefor  3 ปีที่แล้ว +4

      I’m the preamble when I defined each theorem environment, one of the expressions in the {} is the name that appears, so put the French version there

  • @sinmar755
    @sinmar755 3 ปีที่แล้ว +2

    Please Part III

    • @DrTrefor
      @DrTrefor  3 ปีที่แล้ว +2

      Coming soon!

    • @sinmar755
      @sinmar755 3 ปีที่แล้ว

      @@DrTrefor I activated the bell to watch Part 3 as soon as you drop it. I'm very thankful for the hard work you put in your videos

  • @aitanapalomanespardos7089
    @aitanapalomanespardos7089 10 หลายเดือนก่อน

    could you explain how to make new environments?

  • @gedeardaunud1361
    @gedeardaunud1361 ปีที่แล้ว

    and also, when i use begin{figure} and end{figure} the figure resulted goes to the beginning of the text...how does it happen??

  • @lazizieldjouher2934
    @lazizieldjouher2934 2 ปีที่แล้ว

    sir i have a small problem with may table im new in latex and im realy struggling i've been looking for a solution for more than 2 months know but in vain and the deadline of my project in few days can you help me i will send you the small code in email but i dont have yours

  • @gardenmenuuu
    @gardenmenuuu 3 ปีที่แล้ว +1

    How do I take the individual equations for animating in powerpoint?Is there some short /standard way?

    • @DrTrefor
      @DrTrefor  3 ปีที่แล้ว +2

      If you want to do a presentation then look up Beamer, it’s a package for using latex to make presentations. Powerpoint can use tex for simple equations, but that is it

    • @gardenmenuuu
      @gardenmenuuu 3 ปีที่แล้ว

      @@DrTreforI watche your video on how you make videos.As per I understood,you too make some equations using latex right?Do you follow the same method to present the equations?(use a beamer),or do u use some shortcuts to take the latex equations to powerpoint?Thanks :)

  • @emmanuelceliz7819
    @emmanuelceliz7819 2 ปีที่แล้ว

    I can't reference a label in split equation as described in 10:32. I get '??' for the equation number in the output. I'm using TeXworks.

  • @jagwasenibanerjee1424
    @jagwasenibanerjee1424 2 ปีที่แล้ว

    How about I want a lemma numbered 1 and theorem numbered 2 then again a lemma numbered 3, how to do that?

  • @bwambalepedson2528
    @bwambalepedson2528 2 หลายเดือนก่อน

    which offline software can i use for latex

  • @hannawalle-pu2ww
    @hannawalle-pu2ww 4 หลายเดือนก่อน

    How to change the latex typesetting for thesis?

  • @TALKmd
    @TALKmd 3 ปีที่แล้ว +1

    Wow .. great (:

    • @DrTrefor
      @DrTrefor  3 ปีที่แล้ว +1

      Thank you! Cheers!

  • @akepilinggiehili5320
    @akepilinggiehili5320 ปีที่แล้ว

    Can I get APA7 thesis template

  • @calcubite9298
    @calcubite9298 ปีที่แล้ว

    Question: Why is it pronounced "Lay-Tek" rather than "lay-tecks", like what gloves are made of when they're not nitrile?

    • @Wutheheooooo
      @Wutheheooooo 4 หลายเดือนก่อน +1

      X is not a X but the greek's letter "chi"

    • @calcubite9298
      @calcubite9298 4 หลายเดือนก่อน

      @@Wutheheooooo thank you! that's been bugging me for a while :)

  • @deepthyjoseph2784
    @deepthyjoseph2784 2 ปีที่แล้ว

    How to add (%) ,( _ ) on overleaf for python source code

  • @TomLeg
    @TomLeg 10 หลายเดือนก่อน

    Here's to Canadian Spelling!

  • @Mathematics-x3g
    @Mathematics-x3g 10 หลายเดือนก่อน

    One more positive comment 👍👍

  • @MathAdam
    @MathAdam 3 ปีที่แล้ว +1

    I have an allergy to LaTeX

    • @DrTrefor
      @DrTrefor  3 ปีที่แล้ว +1

      Not that kind of latex🤣

  • @AVLZOfficial
    @AVLZOfficial 3 ปีที่แล้ว +1

    oh nice video... cheers!!!! ............. #avlzofficial

  • @AlgoJerViA
    @AlgoJerViA 3 ปีที่แล้ว +2

    Next video... A brief introduction to error messages in LaTeX in just 15 hours.

  • @ccuuttww
    @ccuuttww 3 ปีที่แล้ว

    If u tried to draw a graph or table this is not a choice I'm sorry

  • @arifulislamleeton
    @arifulislamleeton ปีที่แล้ว +1

    Introduce myself my name is Ariful Islam Leeton I'm software engineer and members of the international organization WHO And members of the international telecommiesion And investors privets and public sector

  • @jonetyson
    @jonetyson ปีที่แล้ว

    Scientific Word is free now. There is no reason to write your own LaTeX code instead of having the program make LaTeX for you.

  • @ogunsadebenjaminadeiyin2729
    @ogunsadebenjaminadeiyin2729 3 ปีที่แล้ว +4

    Always interesting and clear. Thank you Prof.

    • @DrTrefor
      @DrTrefor  3 ปีที่แล้ว +1

      Glad you think so!

  • @saidfarid6382
    @saidfarid6382 ปีที่แล้ว

    Hi dear professor
    Thank you so much for your help and advice.
    I really appreciate your job. I wish you peace and happiness under the sky of prosperity.
    All the best.
    Have a good time.
    Your follower from Algeria

  • @saidfarid6382
    @saidfarid6382 ปีที่แล้ว

    Hi dear professor
    Thank you so much for your help and advice.
    I really appreciate your job. I wish you peace and happiness under the sky of prosperity.
    All the best.
    Have a good time.
    Your follower from Algeria