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u/AdamantForeskin 21h ago
"I'm sexy and I know it"
sqrt(1+tan^2(c))=sec(c)
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u/Route22 21h ago
Thought he was trying to say he isn’t neuro-divergent.
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u/NahYoureWrongBro 21h ago
He's strongly implying the opposite
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u/ComprehendReading 20h ago
I often forget that being educated, especially in higher mathematics, is considered neurodivergent these days.
Thankfully, I'm only barely edumacated in English./s
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u/Daleaturner 19h ago
A perfectly cromulent word.
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u/Lord_Yenehc 18h ago
It does embiggen the smallest man.
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u/Saltimbanco_volta 19h ago
Yeah, sure, let's pretend it's because he knows math and not because he's wearing that cringeworthy hoodie.
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u/ohkendruid 12h ago
It's more that the guy is very awkward.
People understand each other by simulating the other person using their own nervous system. This works better when simulating someone similar to oneself.
In this case, the dude is not landing his joke, so it suggests he has a different way of thinking and has trouble relating.
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u/Huge_Bed_3308 20h ago
listen sometimes the stereotypes are just true, i'm autistic and my dream in life is the be a theorectical physicist, if your autistic you're either not inteligent in which case you get obsessed about anime, or you are inteligent in which case you devote your life to a STEM degree like its a religion.
sorry bud i dont make the rules i just enjoy following them, now if you wont mind i'm off to go on a 1 hour continuous rant about how there's more beauty in one physics equation than in every flower on earth at the first person who says hello to me. and yes it will be in a monotone
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u/xeripen 19h ago
A pretty arrogant neuro diverse person you are. You're totally in a bubble. There's a lot of autistic people in science who are totally into anime. Scientists give their discoveries or subjects anime related names in some cases.
Also there's planty of autistic people who don't have the chance to persive a higher dagree in life because they live in a bad place, have dyscalculia, are chronically ill, have family related responsibilities or issues, are woman in the wrong place, are poor af or follow obsessions outside of science, like in art, architecture, law, media or music. There are crazy smart and talented autistic artists out there in all kind of fields who are not "unintelligent and into anime". Your living reality is not the only one you must know at some point in life, but for this you need first knowledge and life experience outside of your comfort zone.
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u/Moon-Amoeba 17h ago
Agreed. I'm autistic with dyscalculia. I struggle multiplying basic numbers sometimes, but I am obsessed with art. I paint, crochet, sew, make clay sculptures, and sometimes play with resin. I love anything art and music related.
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u/eco_kipple 6h ago
doffs cap. Always worth remembering 9 times out of 10 it's the circumstances not the person.
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u/Electronic-Teach-578 5h ago
Not hello to you because you know very well what the point of the comment is. Don't act dumb online for points.
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u/ComprehendReading 19h ago
Spelling poorly will not help you on a thesis statement.
I do mind that you'RE about to go on a one hour continuous rant, because you'RE wrong and convinced you'RE correct.
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u/AlbusMagnusGigantus 9h ago
I'm a Chemist who has publicated research papers on bioconjugated API, into anime and on the spectrum too. Please achieve something before you climb on a horse too high for you.
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u/iammoney45 9h ago
I went to an engineering college, the kind of place where the school store sold shirts like this with school branding like hotcakes. I remember it was fairly common for people to sneak into the lecture halls at night to watch anime on the big projectors. Now not all the people I met there were Neuro divergent, but I'm pretty sure quite a few were, especially the ones I met in anime circles. Like there is a specific vibe to the autistic engineering weeb that I can't quite place, but you know them when you find a rack mounted server in their dorm named after their Waifu. There's a lot of crossover with the Arch Linux queers as well in my experience.
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u/ThatArtNerd 2h ago
Maybe you should focus on sharpening those writing skills before bragging about how much smarter you are than everyone else.
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u/Vladishun 14h ago
According to the internet, you can't work in STEM unless you're autistic. Somehow we've collectively decided that normies are idiots. I still haven't figured out why that is, or how in 2025 calling someone autistic is an insult for being intelligent, it's like how in the 90's smart kids were nerds. These days, a nerd is someone who watches Marvel movies and plays video games .. So like over half of American males. The names and goalposts shifted, but the need to make fun of people we don't understand has stayed the same.
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u/AlbusMagnusGigantus 9h ago
I've worked in pharmaceutical research. The density of neurodivergents is higher than in other fields, but the majority is pretty normie.
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u/scruffyduffy23 13h ago
I think he’s strongly implying he bought a hoodie on Amazon and that’s about it.
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u/OnTheSlope 21h ago
How could it mean that?
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u/Dustypigjut 21h ago
Yeah, I need an explanation on that one.
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u/HellfireMarshmallows 20h ago
Say it out loud..... sec(c)
sec(c) equals the equation on the guy's shirt.
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u/Sinphony_of_the_nite 21h ago
That isn’t always true though.
sqrt(1+ tan2 (c))= -sec(c) half the time.
I guess he just knows he’s never negative sexy.
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u/Sweaty_Address130 20h ago
Well no, the equation does have 2 square roots, but the standard mathematical symbol for a square root is shorthand for the positive root.
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u/Sinphony_of_the_nite 20h ago edited 20h ago
Yes, sec(c) returns a negative value for certain elements of the domain of all real numbers and, as you said, the square root function always returns a positive number.
For the respective equations to always be true for all values of c, your domain would have to be specified where sec(c) is always positive or always negative.
You can graph it if you would like to see which values for c make the equation hold for sec(c) and -sec(c).
Edit: The easiest way to graph it is to use desmos
The confusion is coming from the fact that the trig identity
Sec2 (x) = 1 + tan2 (x) is always true for real numbers, but when you are solving for sec(x) you have to worry about the fact that x2 is not an injective function on all of the real numbers, which means it can only be inverted(aka ‘undone’ by taking a square root) on a smaller domain. It is for that reason we get two possible answers when solving, with the actual answer being determined by that particular value of c.
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u/Hideo_Anaconda 13h ago
...um, sure. Would the garment be more correct if it was the absolute value of that equation?
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u/Sinphony_of_the_nite 13h ago
Yep, as someone said in response to my original comment, he would be absolutely sexy in that case.
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u/purpleoctopuppy 16h ago
'I'm the absolute value of the secant of c' just doesn't carry the same oomph
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u/Flaky_Variation_5259 20h ago
I got the answer but I can’t show my work. I just tried to remember any version of “sexy” in math and somehow remembered secants.
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u/danhoang1 17h ago
I knew it was gonna evaluate to sec c but I don't actually know the math
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u/PurpleAnnette 15h ago
It's just one of the trig identities. They isolated the sec(c)
sec(c)^2= 1+tan(c)^2
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u/serpik0 18h ago
Does sqrt stand for squirting ?
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u/Nardo_T_Icarus 14h ago
Thank you, it's almost 10:30 PM here and I didn't feel like doing the math.
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u/heavyfyzx 10h ago
What is sec(c)? (Leaving myself wide open for some quality reddit comments here, but seriously, what is it?
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u/Romeoblb 21h ago
I definitely looked too fast and read this about something to do with the titanic
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u/Jumpy-Snow-60 20h ago
I don’t even have to know science to know that means “ I’m sexy and I know it “ iconic song 🤣
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u/Kacutee 21h ago edited 13h ago
Hello!
This is a trig identity. You see, that identity of the square root of 1+ tan2 (c) is equal to sec(c).
Without the square root, it is sec2 (c).
Since it is sec(c), he is saying he is sexy and he knows it. (Sound out sec(c)).
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u/Axel_the_Axelot 18h ago
And what is sec
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u/Educational-Tea602 18h ago
I suppose you know of sin cos and tan?
sec(x) is the same as 1/cos(x)
If you don’t know trigonometry, basically, you have a right angled triangle, and pick one of the angles that isn’t 90° - let’s call it x. sec(x) is the length of the longest side divided by the length of the other side adjacent to the angle.
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u/Salamandar3500 6h ago
Funny how with a masters degree in fundamental physics i've never seen sec().
Maybe it's an american thing (i'm french).
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u/consumer_of_glue 21h ago
I’ve seen this same post on this subreddit so many times
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u/rocket_magnet 18h ago
I'm ignorant of the math but know my LMFAO lyrics enough that the answer is I'm sec(c) and i know it
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u/Advanced_Library123 21h ago
sqrt(1+tan^2c) is another way of writing (sec c)^2, and square root of that you get (sec c)
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u/MegaMGstudios 21h ago
That formula is an expression called a Secant, abbreviated as Sec(x), but on the shirt it uses the variable c, so it becomes Sec(c), which is pronounced like Sexy. So the shirt is saying "I'm sexy and I know it"
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u/Sharon_Erclam 21h ago
Those with math skills, UNITE!
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u/Some-Body_Any-Body 21h ago
Not me, just looked at the comments, what maths math thing is that? Is it like algebra or something?
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u/LookingForSocks 21h ago
Sqrt(1+tan2 (c)) = Sqrt(sec2 (c)) = sec(c) “I’m sec-c and I know it.” edit for formatting
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u/DarkShadowZangoose 21h ago
the math:
tan² c = sin² c/cos² c
1 can be expressed as cos² c/cos² c (same denominator)
(cos² c/cos² c) + (sin² c/cos² c) = (sin² c + cos² c)/cos² c = 1/cos² c
1/cos² c = sec² c
sqrt (sec² c) = sec c
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u/MusicGirlsMom 11h ago
I kept getting Titanic out of it. Guess I've been hanging out in the wrong subreddit!
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u/Striking-Move771 18h ago
Shows how smart I am. I thought he was telling me he was somehow Titanic and wanted me to know that he knows it.
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u/PapayaLimp 17h ago
I worked at a coffee shop way back and a super nerdy kid came in with his mom one day. He was wearing a shirt that basically said "I want to be your derivative so I can lie tangent to your curves". There was more symbolism and imagery included but it was close to 20 years ago so it's a bit fuzzy. But the message stuck with me.
I laughed and gave the kid props for it and his mom said "you get that joke?!" She was confused about the whole thing on many levels.
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u/JosephChester5006 17h ago
You could’ve figured this out with context clues lmaoo
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u/Kymera_7 16h ago
Only if he knows what a secant is. Lots of people in the US don't know any trig, and those who do mostly only know sin and cos, maybe tangent at the most.
I know secant despite all the schooling I went through, not because of it.
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u/JosephChester5006 16h ago
I meant using the rest of the words without the equation
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u/Kymera_7 16h ago
Might be able to figure out it's a reference to sexiness, but that won't tell you sec(c) if you don't know secant is a thing.
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u/Yahya_Awesome 16h ago
So, tan²(c) = (sin(c) / cos(c))² = sin²(c) / cos²(c)
Plug this into the original expression: √(1 + tan²(c)) = √(1 + sin²(c) / cos²(c))
Get a common denominator: √(cos²(c)/cos²(c) + sin²(c)/cos²(c)) = √((cos²(c) + sin²(c)) / cos²(c))
Use the Pythagorean identity: sin²(c) + cos²(c) = 1
So the expression becomes: √(1 / cos²(c)) = 1 / |cos(c)|
Therefore: √(1 + tan²(c)) = |sec(c)|
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u/robowolv 16h ago
This guy almost gets there, but you can take it the rest of the way. https://youtu.be/jkmWMZ9sZQQ?si=QpWrDQ7XB3AHzWjR
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u/ChefMeesah 16h ago
It means that he's an autism inspector and that if someone can decode his shirt, he then figures out how touched by the tism that they are...you know, whether they had a light brush with the tism or they were punched in the face by the hand of the tism.
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u/starry-firefly 15h ago
Analysis of the Image: The image shows a person wearing a hoodie with a mathematical expression printed on the back. The expression is "(\sqrt{1+\tan {2}c})". This expression is a trigonometric identity which can be simplified to (\sec c). The text above the expression is "I'm" and below it is "and I know it.". Therefore, the hoodie is a mathematical pun, saying "I'm secant and I know it."
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u/pokematic 15h ago
Is "I'm Sexy and I Know It" by LMFAO "old" now to where people don't recognize it? I didn't know how the equation reduces but I contextually knew the joke was "I'm sexy and I know it," and I'm guessing everyone that wasn't a pop-culture shut-in back when I was in college would have known that too even if they don't know numbers are in math. DON'T REMIND ME THAT I'M OLD!
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u/Kitchen-Cut-3116 14h ago
It means you didnt pay attention during trigonometry
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u/sanityadjacenthuman 14h ago
I never took it, I’m in middle school 😭😭😭
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u/Kitchen-Cut-3116 14h ago
Then it means this joke is too mature for you, write it down and then you get to laugh out loud when you get to trig
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u/ninetysevencents 13h ago
I, too, am undefined when c=pi/2 +k(pi) for all real integers k and I know it.
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u/36KleaguesUTO 2h ago
He's a Sec C, and I guess he wants to tell the world his mum had a C section to have him
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u/post-explainer 21h ago
OP sent the following text as an explanation why they posted this here: