What is the meaning of Greek symbols | Delta, del, d | Greek letters in mathematics

What is the meaning of Greek symbols | Delta, del, d | Greek letters in mathematics | Greek symbols

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Physics for Students- Unleash your power!!

3 жыл бұрын

#greeksymbols #differentialoperators #greeklettersinmathematics
Do you know what are these Greek alphabets ?Δ, 𝜹, 𝒅, 𝝏
Do you know what are the differences between Δ, 𝜹, 𝒅, 𝝏
Do you know that they are not all Greek all alphabets ?
In this video, I have explained what those Greek alphabets mean. I have explained with a simple example, the meaning of those alphabets? Is there any difference between them? Are they all used in calculus or differential equations substituting each other? Definitely, there are differences. Also, in chemistry what do those letters mean?
Watch out for this video where are those Greek alphabets are carefully examined along with simple examples. I have given the origin and the root of those Greek alphabets, with their internal meanings and which one is used when. It is important for us to know really what those letters mean and how and when they are used.
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#whatisΔ #whatis𝜹 #whatis𝒅 #whatis𝝏
#greekletter #whatisthedifferencebetweendeltadeld #greekalphabets #whatisdeltainphysics #whatisdelinphysics #whatisΔ #whatis𝜹 #whatis𝒅 #whatis𝝏 #calculus #partialdifferentiation #greeklettersusedinmathematics #greeklettersandtheirusage
#mathsymbols #mathsymbolname #greekdelta

Пікірлер: 126

@hannahduggan3599 2 жыл бұрын

I first fell in love with the Greek alphabet when I was 6 years old after I saw it in a dictionary. I told Mommy and Daddy all about it. Daddy then called his big sister, my aunt Susan. Susan then talked to me on the phone and told me that her evil abusive husband, my uncle Scott, knows all about the Greek alphabet. And when I went to church, Scott got out a piece of paper and wrote the Greek alphabet from alpha to omega and gave it to me. He told me that the Greek alphabet is used in mathematics and science. When I went to school the next day, I began writing the Greek alphabet in my math book and my teacher demanded, "Hannah, what is all this nonsense?" And then I said, "it's the Greek alphabet. My uncle said that it's used in mathematics and science." And then, my teacher said, "Hannah, you are in the 1st grade. Why is your uncle trying to move you up to college? And this is 1st grade math, not college math." When I got home, I even taught my little brothers, Joseph, Seth, and Zach, all about the Greek alphabet. They were 3, 1, and a baby. I am 25 years old now and Joseph, Seth, and Zach, are now all 22, 20, and 19. I have three other brothers Jed, Isaiah, and Jeremiah. They are 17, 15, and 13. Susan and Scott are still married, but Scott lives far away because he is physically violent and abusive towards his wife and children.

@physicsforstudents 2 жыл бұрын

Thank you very much for your wonderful narration. Indeed I can understand your love for Greek alphabet. I am glad that you have watched my video and went nostalgic reminiscing your old days. It is very rare to find someone who has immense love for Greek alphabets. Thank you very much and please do subscribe to my channel and share my videos.

@physicsforstudents 2 жыл бұрын

@Myscher Thank you

@physicsforstudents 2 жыл бұрын

@Myscher Thank you. For any assistance please write to me at editor@physicsforstudents.com Keep an eye on this channel as I am trying to bring more interesting videos. Thwbj you again.

@morty7145 2 жыл бұрын

sad..

@timehasstoppedandthefunbeg4467 Жыл бұрын

Poor scott

@tanushreesrivastav4325 3 жыл бұрын

Your videos are experimental and ingenious sir. Never came across such brilliant topics which are a source of knowledge for the students of every stream😀☺

@physicsforstudents 3 жыл бұрын

Thank you for your wonderful comments. Keep watching for more.

@physicsforstudents 3 жыл бұрын

Visit my website to know more; www.physicsforstudents.com You can submit your articles, scientific writings here. Free! We will peer review and publish.

@mathematicswithmetsphysics Жыл бұрын

You are really doing very great , Mr. Shaunak ❤👍💐🍀. I'm wishing heartful blessings every student who come to learn here. They eventually will know about you how brilliant you are and how you are shaping their knowledge to great extent to achieve them a bright future. Best wishes for all. ❤❤💐🍀

@physicsforstudents Жыл бұрын

Thank you very much. Your wishes and cooperation always motivates me. Thanks.

@32459 Жыл бұрын

brilliant video, i never knew where this curly d comes from, i am grateful that somebody covered that topic in so much detail, thanks!

@physicsforstudents Жыл бұрын

Thank you very much for watching. I am really touched by your words. Stay tuned to this channel. You can also look into my other channel and subscribe. www.youtube.com/@generalrelativityexplained Thanks for your motivating words.

@moyndebs6759 2 жыл бұрын

I see this a lot in Geophysics textbooks 📚. Thanks for explaining 👍

@physicsforstudents 2 жыл бұрын

You are welcome.

@abhirupmoitra8711 3 жыл бұрын

This video is very much informative .

@juulimint2979 Жыл бұрын

8:06 Δ(delta uppercase) as a Laplace-Beltrami operator LaTeX: 1. Uppercase Delta (Δ): $\delta$ | greek symbol 2. Lowercase delta (δ): $\Delta$ | greek symbol 3. D (d): $d$ 4. Curly d (∂): \frac{\partial f}{\partial x}, \frac{\partial f}{\partial y} | cyrillic alphabet. summary: 32:55 usage: Δ: used on vector calculus for: 1. *vector operator* : (∇f = ∂f/∂x i + ∂f/∂y j + ∂f/∂z k). 2. *the rotational* : ∇ × F = (∂Fz/∂y - ∂Fy/∂z) i + (∂Fx/∂z - ∂Fz/∂x) j + (∂Fy/∂x - ∂Fx/∂y) k 3. *divergence* : ∇ · F = ∂Fx/∂x + ∂Fy/∂y + ∂Fz/∂z etc: Line Integral, Stoke's Theorem, ... also for movement in physics I δ: ? d: used on calculus I all the time ∂: used for partial derivatives . used on calculus II

@physicsforstudents Жыл бұрын

Yes, right.

@sdsa007 Жыл бұрын

@27:43 for the equation for del z. in the bottom left, I think there should be a curly dee for y in the denominator, since there is a curly dee for x in the denominator...

@physicsforstudents Жыл бұрын

I will check. Thank you for pointing out.

@pinklady7184 3 жыл бұрын

Very clear. You explain well. I am subscribing.

@physicsforstudents 3 жыл бұрын

Thank you very much for subscribing. Keep watching. I will be posting more interesting videos.

@Shashank_Shahi1989 Жыл бұрын

Please make more videos on mathematical symbols and notation and their meanings and use in mathematics and real life. Thank you for your service.

@physicsforstudents Жыл бұрын

You are welcome. Thank you for your valuable comments. Please stay tuned as I am coming up with more videos.

@jbouguechal 2 жыл бұрын

Hello sir, I like this video, it's very intersting and very clear. I think, some mistakes at 29:45 ....dv/dr = is dv/dh ( the second derivative) and dv = +pir^2. dh without h ! thanks for your wonderful explanation.

@physicsforstudents 2 жыл бұрын

I will look into it but thank you for pointing out the mistake. I am always learning. Please subscribe as I am trying to bring out more interesting videos.

@robertjr8205 Жыл бұрын

Thank you so much man. I feel there’s too many professors who forget to mention the different between that delta x and dx. They say it’s the same meaning which it is in a way but do not include the actual difference

@physicsforstudents Жыл бұрын

Thank you very much. In this channel, I am trying to bring out those subtle differences which are either a misconception or not taught. Thank you very much for your comment.

@saarausmaan 3 жыл бұрын

As good as always

@kannanarjun503 Жыл бұрын

Thank you so much sir .. your genius…finally I got to know what is Delta , d,

@physicsforstudents Жыл бұрын

Thank you. Please check out my other videos also.

@borhanuddin6217 2 жыл бұрын

How wonderful explanation!!

@physicsforstudents 2 жыл бұрын

Thank you very much for your comments. You can also visit my website www.physicsforstudents.com

@Perrydog101 Жыл бұрын

Thank you. I will never stagnate 😃 It's akin to pouring water into a large bucket 🪣 with a large hole in it. Ans. Immersion

@pinklady7184 3 жыл бұрын

Do you ever consider making more videos on notation misuses and also on abuses of mathematical writing? I am very much interested in learning correct usage of notations and in proper mathematical writing.

@physicsforstudents 3 жыл бұрын

This is a very interesting point. I have never thought about that. Interesting point. Let me think. I was planning to make videos on all the symbols used in mathematics but.... I am currently working on making a video on topology. Next in my list are vectors..... Let me think. It is a very good point. Thank you for bringing this idea.

@physicsforstudents 3 жыл бұрын

What do you mean by abuses of mathematical writing? Please elaborate.

@pinklady7184 3 жыл бұрын

Physics for Students- Unleash your power!! Few months ago, I bought few math books by Lara Alcock. She first brought my attention to notation abuses and bad mathematical writing. I am only an intermediate in mathematics and a novice in physics. I am not too knowledgeable when it comes to notations. Add. I am confused about barred arrow and double-headed arrow as those used in commutative diagrams. Also, I don't understand what an arrow with dashes means.

@physicsforstudents 3 жыл бұрын

@@pinklady7184 I wish I could dedicate my entire life creating videos and get wonderful subscribers like you. Email me with screenshots of the arrows that you are telling: shounakbhattacharyab@gmail.com I will make you understand.

@physicsforstudents 3 жыл бұрын

Visit my website to know more; www.physicsforstudents.com You can submit your articles, scientific writings here. Free! We will peer review and publish.

@chrisogonas Жыл бұрын

Good stuff! Thanks

@physicsforstudents Жыл бұрын

Welcome.

@ghulammuhammad6638 Жыл бұрын

Top class❤

@abhirupmoitra8711 3 жыл бұрын

Sir why we use script sign in mathematics , Statistics , Mathematical physics as well ? Can you discuss a bit which script sign define what in mathematics , physics & Statistics as well .

@physicsforstudents 3 жыл бұрын

Script sign means ? You are saying indices ?

@physicsforstudents 3 жыл бұрын

Visit my website to know more; www.physicsforstudents.com You can submit your articles, scientific writings here. Free! We will peer review and publish.

@bikashyadav3064 3 жыл бұрын

wonderful explanation 😊

@physicsforstudents 3 жыл бұрын

Thank you very much. I am glad that you liked it.

@abhijitkalita6931 3 жыл бұрын

Very informative video sir.

@physicsforstudents 3 жыл бұрын

Thank you. I am coming up with more such videos

@MuteObserver Жыл бұрын

Thank-you!

@physicsforstudents Жыл бұрын

Welcome

@sgsbhinder 2 жыл бұрын

First time understand it properly

@physicsforstudents 2 жыл бұрын

Thank you Sir. Thank you very much for your comments. Wish you a Happy New year ❤️❤️🎈🎉 2022

@emilianorosario5935 8 ай бұрын

Thank you for the video! This cleared up a lot of confusion I had, although I have one slight question. How is the curly d "∂" traditionally pronounced? I've seen it called by many names. Often times, ∂f/∂x is pronounced simply as "the partial derivative of F with respect to x" but I'd like to know if there's another name. Similar to how dy/dx is pronounced as "dee y dee x" , would ∂f/dx be pronounced as "del f del x" ? I know that "del" is often used to refer to nabla ∇ which is a different concept. Thank you!

@physicsforstudents 8 ай бұрын

What you have written is perfect. Partial derivative of x with respect to partial derivative of y. Yes, you can call it del x or dee x by dee y. Well, Nabla is the inverted pyramid type. It is mostly used as a gradient operator. Thank you for your wonderful comment.

@zoozolplexOne Жыл бұрын

Cool !!!

@physicsforstudents Жыл бұрын

Thanks.

@ashutoshojha1859 Жыл бұрын

Plz sir Hindi mein bhi video banaie plz sir bahut achha aur useful hai

@physicsforstudents Жыл бұрын

Thanks. I cannot speak Hindi. I can read and write.

@1234569312 2 жыл бұрын

Dear Sir, great explanation...!! Sir, could you please make a video on one more basic concept related to "Vectors" and "Vector Space". For the first time we come across vector in high school when study about velocity, force and acceleration etc. but in higher studies when we come across the term called Vector Space then it creates some confusion like difference between them and a vector space can have even a polynomial, function and other structure also as its elements. If your time permits, please explain it...

@physicsforstudents 2 жыл бұрын

Thank you for watching this video. Vector and vector space..... I think, I already have. Let me check. I will send you the link. Do you have Topology and differential geometry in your studies?

@physicsforstudents 2 жыл бұрын

Here is the video on vector space kzfaq.info/get/bejne/d6mUiJdhy9PDc3k.html You can find a lot of vector operations in this playlist.

@1234569312 2 жыл бұрын

@@physicsforstudents thank you sir, yes, I have topology

@physicsforstudents 2 жыл бұрын

@@1234569312 So, you are a student of master in mathematics? I am coming up with a new video on Topology.

@whatever3041 Жыл бұрын

These are very good videos, but make them with a dark background so they are easy on the eyes.

@physicsforstudents Жыл бұрын

That is a nice suggestion. Thank you very much.

@bishwajitbhattacharjee8068 2 жыл бұрын

Excellent! Maths can be very very interesting even for ateacher

@physicsforstudents 2 жыл бұрын

Thank you. Good to know that you are a mathematics teacher. Thank you for watching my video ☺️☺️

@bishwajitbhattacharjee8068 2 жыл бұрын

I am not a maths teacher but taught Engineering for over 35 years. Thanks again.

@physicsforstudents 2 жыл бұрын

@@bishwajitbhattacharjee8068 Great !! My father is also a metallurgical engineer from IIT Kanpur.

@canismajoris6061 2 жыл бұрын

What does it mean to be constant in time? Does this mean that the smallest lengths of time do not change?.. X=v.t=f(v,t) 6(v,t) /6v = t is it true ? Something occurred to me.. If the universe is expanding, could the smallest units of time be lengthening?..If this is true, the change in time is not constant..So 6(v,t) / 6v is a photo in a video?..I'm very confused .

@physicsforstudents 2 жыл бұрын

Inflation of the Universe is something different.

@Aliusman.781 Жыл бұрын

When we go from perceptible to imperceptible we change our gear from rigorous to just philosophy, the only question which ever is going to be answer is how close we get near to zero ∆x goes. And that I am afraid is so abstract that no one ever gets closer to zero ever. We are still perplexed by zenno's paradox we all know it to be untrue.

@physicsforstudents Жыл бұрын

That is a very insightful comment. Thank you very much.

@PaulPassarelli Жыл бұрын

Thank you Humpty Dumpty.(*) H.D.: "When I use a word it means exactly what I want it to mean,. - neither more nor less." Alice: "That's silly."

@vikashdhillon04 3 жыл бұрын

Greek were master of science

@user-kx7qy7sr7t Жыл бұрын

👍👍👍👍👍👍

@georgeorourke7156 Жыл бұрын

At pt 6:31 it should be 90 km/hrs times 3 hrs =270 kms

@physicsforstudents Жыл бұрын

You are right. Thanks for pointing out that.

@mridulpandey6646 Жыл бұрын

at 29:38, should it be ∂V/∂h = πr² ?

@user-xj8he4gr2h Жыл бұрын

You are correct.

@physicsforstudents Жыл бұрын

Thank you

@ZaZa-ln9jo Жыл бұрын

👍

@physicsforstudents Жыл бұрын

Thank you

@gaureearolkar1522 Жыл бұрын

what is pronounciation of cyrilic alphabet d?

@physicsforstudents Жыл бұрын

Like the pronounciation of 'd' in 'door'.

@cameronspalding9792 Жыл бұрын

@ 6:41 Shouldn’t d simply be 90 km not 90km/hr

@physicsforstudents Жыл бұрын

You are right. I hope you enjoyed the overall video.

@ShoukatAli-py5cv Жыл бұрын

Why we can't replace d with ∆d in physics?

@physicsforstudents Жыл бұрын

The answer is there in the video, d is a very, very, very small way of differentiation whereas, delta d is a significantly bigger way of differentiation

@ShoukatAli-py5cv Жыл бұрын

Thank you so much sir. You have solved my biggest confusion. You are doing an excellent job. I am subscribing

@physicsforstudents Жыл бұрын

@@ShoukatAli-py5cv Thank you very much for your appreciation. Watch my other videos. I also have a website. Please look into it www.physicsforstudents.com

@cameronspalding9792 Жыл бұрын

The triangle symbol is used to denote the laplacian

@btruj2507 Жыл бұрын

At 6:27 the /hr should be removed from distance 90 km/hr. Distance should be only 90 km. Otherwise the answer 30 km would be incorrect, it would be 270 km.

@physicsforstudents Жыл бұрын

You are right

@eroht934 3 жыл бұрын

Distance=90km/hr It's just a mistake ryt.. I'm not that bright of a student so not sure just askin

@physicsforstudents 3 жыл бұрын

You are absolutely right. Thank you for pointing out.

@joeboxter3635 Жыл бұрын

You forgot epsilon.

@physicsforstudents Жыл бұрын

Yes, you are right.

@birjubhaiya8204 Жыл бұрын

I think dx doesn't represent a distinct quantity; it represents a continuous entity

@physicsforstudents Жыл бұрын

In calculus, "dx" is a notation used to represent an infinitesimally small change in the independent variable, typically the variable of integration or differentiation. It is often seen in integrals and differentials.

@adamkolany1668 Жыл бұрын

I think you confuse the words "letter" and "alphabet"

@GryffieTube Жыл бұрын

in - fin - nih (as in nip) - tesimal (sounds like decimal but with a "t"). NOT in-figh-night-simial. Hope that helps :) OR GO TO: kzfaq.info/get/bejne/o8d9nsZhv7fOhWw.html

@physicsforstudents Жыл бұрын

Thank you very much for correcting my pronounciation.

@GryffieTube Жыл бұрын

No problem, I saw you struggled a bit with that one and I know the feeling. Your English is excellent btw and I really benefited from watching your video, thank you very much indeed! :)@@physicsforstudents

@physicsforstudents Жыл бұрын

That's wonderful. Your words motivated me. I also teach communicative English. Stay tuned as I am coming up with more such interesting videos. Thanks a lot.

@josephrubio9632 Жыл бұрын

Terriable reference.

@yugalsharma2773 2 жыл бұрын

Sir, please use a laser pointer instead of telling to look at a particular part of screen.

@physicsforstudents 2 жыл бұрын

That is a good suggestion. Thanks.

@josephrubio9632 Жыл бұрын

The four symbols should be labeled, before explaining concepts that have no specific reference.

@atreidesson Жыл бұрын

I am here to just reveal that the letters have no meaning by themselves

@piosmiles7152 9 ай бұрын

This is not the Russian alphabet ignorant, it is the Slavic alphabet that emerged from the Bulgarian brothers Cyril and Methodius. Slavic culture is not Russian culture, ok?

@JA-ym1tc 8 ай бұрын

You explain too slow.

@johncrighton4738 Жыл бұрын

You spend waaaay too much time talking about the Greek alphabet... just get to it please

@RizwanAhmedKhan-et7gu Жыл бұрын

An interesting topic, but extremely sorry to say that it was a poor presentation - mostly because of English. A lot of confusion in expressions makes it difficult to comprehend, at places, what is what and why something is what??? A kind of weird - uncanny, started headache listening to repeatitive and overlapping statements

@physicsforstudents Жыл бұрын

Thank you for the comment. I will try to improve on this.