this post was submitted on 26 Dec 2024
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Science Memes

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[–] [email protected] 0 points 3 months ago (4 children)

Say it in English grammar "GREATER than" means greater number first. And vice versa.

[–] [email protected] 5 points 3 months ago* (last edited 3 months ago) (1 children)

Crocodile eats bigger number is way easier to remember

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[–] [email protected] 2 points 3 months ago

MesseR Rechts, GabeL Links.

Every single time when setting up dishes on the table.

[–] [email protected] 3 points 3 months ago

Directions are one of the most confusing aspect tbh. Bounding is difficult..

[–] [email protected] 8 points 3 months ago

I earned it as the larger part being on the side of the bigger number

.<:

[–] [email protected] 4 points 3 months ago

One of my favorite teachers taught computers and pointed out that the less than symbol is towards the side of the keyboard with smaller numbers.

[–] [email protected] 2 points 3 months ago

Crocodile want to eat cactus ?

[–] [email protected] 9 points 3 months ago (3 children)

Surely in theoretical physics, the most common use of > is in a ket (eg. |ψ>).

[–] [email protected] 4 points 3 months ago (1 children)

No? Not everyone's doing work on quantum systems. Far from it. Most people do not need to use Dirac notation.

[–] [email protected] 3 points 3 months ago

I guess not. Its just that when I hear 'theoretical physics' I immediately think of particle physics (and related fields). I have this idea that in most branches of physics people just say the topic, eg. astronomy, material sciences, or whatever; and don't usually specify whether they are doing theoretical work or experimental/empirical work. But in particle physics ... my impression is that people are more likely to specify. Anyway, that's just my own bias I guess.

[–] [email protected] 14 points 3 months ago (1 children)

arguably, it's |ψ〉, which is not the same as >

[–] [email protected] 7 points 3 months ago (2 children)

wow that's a big difference (I have no idea what you are talking about)

[–] [email protected] 7 points 3 months ago (1 children)

It is just a notation for linear algebra and linear operators on complex vector spaces together with their dual space both in the finite-dimensional and infinite-dimensional case. Really quite simple stuff actually...

[–] [email protected] 4 points 3 months ago

smiles and nods, smiles and nods...

[–] [email protected] 9 points 3 months ago

I think 〉 means a very hungry (or at least large mouthed) crocodile, and > is just a normal one.

[–] [email protected] 19 points 3 months ago (2 children)

Crocodile want to eat cactus ?

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[–] [email protected] 12 points 3 months ago (3 children)

<3 is "less than three", and 3 is "three" so logically < is "less than"

[–] [email protected] 12 points 3 months ago (1 children)

I try this, but I always get <3 mixed up with Ɛ>

[–] [email protected] 8 points 3 months ago
[–] [email protected] 11 points 3 months ago

aww love you too bro <3

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[–] [email protected] 27 points 3 months ago

big side, big number

[–] [email protected] 4 points 3 months ago

I was being disruptive in first grade and kicked out of class then we learned this (ADHD and boredom). I tried to peak through the window and do the crocodile arms to learn it, but my teacher saw me and came out and told me to stand at the end of the hall. I didn’t really learn this until 3rd grade. Ironically, math was my favorite subject for all of k-12.

[–] [email protected] 5 points 3 months ago

I still sometimes think of pillars of one building when I think of concept of "tomorrow" because seeing those pillars was supposedly the first time in my childhood when I heard about "tomorrow".

[–] [email protected] 8 points 3 months ago* (last edited 3 months ago) (2 children)

I've always been a fan of using > and < but in the general use of lesser than or greater than, however, the symbols were always interchangeable to me since it always depends on where you put the defined integer, correct?

If I want to say something is less than 37. It can either be 37 > or < 37.

Because in that scenario the imaginary integer n is always on the opposite side of the symbol.

37 > n

n < 37

So why did > ever become greater and < be less than? Doesn't it also depend on how your text is written? If people reading from right to left or down to up vs left to right and up to down, means it's reversed.

The open part of the caret is where the bigger number is, the opposite side is where the lesser number is.

[–] [email protected] 9 points 3 months ago* (last edited 3 months ago)

37 > n

"37 is greater than n."

n < 37

"n is less than 37."

Obviously both sentences have the same meaning, but the symbols are named that way because people usually read left to right... (in English that is)

[–] [email protected] 8 points 3 months ago* (last edited 3 months ago) (2 children)

So why did > ever become greater and < be less than? Doesn’t it also depend on how your text is written? If people reading from right to left or down to up vs left to right and up to down, means it’s reversed.

Yes. > is "greater than" because you're reading left-to-right. 12 > 9, read: "twelve is greater than nine". When reading in a right-to-left script, it's the opposite, but because of how the BiDi spec works, the same Unicode character is actually used for the same semantic meaning, rather than the appearance. Taking the exact same block of text but formatting it right-to-left (using directional isolate characters) yields "⁧12 > 9⁩", which is still read as a "greater than", just from right-to-left.

Hopefully that makes sense.

So yes, if you copy the > character and paste in any directional environment, it will retain its meaning of "greater than".

Edit: on my phone, the RTL portion is not formatted well. If you can’t see it, try a browser.

[–] [email protected] 5 points 3 months ago

You just blew my mind with that unicode trivia. Super cool !

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[–] [email protected] 4 points 3 months ago
[–] [email protected] 8 points 3 months ago (1 children)

i feel like i’ve been using latex for so long that at this point my brain has been rewired to see ≤ as ‘\le’ (less than or equal to) and ≥ as ‘\ge’ (greater than or equal to), and then this dictates how i view < and > as well

[–] [email protected] 2 points 3 months ago

I worked for years in a data validation system. All day I was writing rules using the symbols and writing the decode of the rule in words - less than or equal to

I really don't need mnemonics

[–] [email protected] 3 points 3 months ago (1 children)

Another way to remember is that < is like a squished L, for "Less than"

[–] [email protected] 2 points 3 months ago

This is how I always remember it

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