From high school I have been noticing that I always struggle in learning pnc, prob, matrices not matrices though but still I dint like it I hate these topics i never got these topics i can think of formulas but when it comes to solving problems I usually go blank .

But when it comes to indefinite integrations, trigonometry and derivations in physics as that of motion. I have always enjoyed those things.

Am I made for math I mean this weird combo ?

Calc is calculas

Here we have the useful venn diagram where A is the set {1} and B is the set {2} and we have AnB being the sum of the 2 sets .

Hello people of Reddit with a better mathematics expertise than most.

I don't want to sound too stupid for this question, but I have been having a concept in my mind since I did shrooms in 2016. When I was studying about the infinites at school, we always study them as a measure. "The result is infinite" or "infinity+10X" or similar.

Now while I was having this trip it occurred to me that infinity could now be a number "defined" by infinity, but rather an ever growing, making it not a stable structured answer, but rather an ever changing dynamic concept where the answer is rather incorrect than correct when it results in this.

I don't know how to explain this, but every time I think about this I always think that someone must have reached the same conclusion as me.

I would like someone to either confirm or debunk my thinking, but explain it to me as someone who never done any mathematics in his life.

Thank you again and please don't judge a poor fella who didn't have money to continue his education but very much appreciate to know more.

This article continues my previous work on the same topic. I present a simple geometric proof sketch of the injectivity of the Dirichlet eta function with respect to σ . As always, comments, suggestions, and contributions are greatly appreciated.

I hate pure maths but like calc

From high school I have been noticing that I always struggle in learning pnc, prob, matrices not matrices though but still I dint like it I hate these topics i never got these topics i can think of formulas but when it comes to solving problems I usually go blank .

But when it comes to indefinite integrations, trigonometry and derivations in physics as that of motion. I have always enjoyed those things.

Am I made for math I mean this weird combo ?

Hi!

So, all my life I've been using this theorem I developed and I thought was common knowledge, but apparently it isn't. So, I came here to check if it really holds up. I know someone else smarter than me must've noticed this before, so I also ask the name of this theorem. Here it is:

To multiply two full numbers that aren't equals and that are either both odd or even, you can, instead, take the number that is equidistant to them and raise that to the power of two, then you subtract from that the distance between one of the original numbers and this equidistant one raised to the power of two.

Examples:

13 x 15. The equidistant number here is 14. So, 14², which is 196. The distance between 14 and 15 is 1. So, I subtract 1² from 196, resulting in 195.

24 x 28. The equidistant number here is 26. So, 26², which is 676. The distance between 26 and 28 is 2. So, I subtract 2² from 676, resulting in 672.

6 x 18. The equidistant number here is 12. So, 12², which is 144. The distance between 12 and 18 is 6. So, I subtract 6² from 144, resulting in 108.

I don't use this for everything, mainly for two numbers that are close.

Thanks in advance!

Helloooo, Im a high school student that is currently learning about logarithims,exponential functions and graphing, and in the course my professor started off by saying that he has a Nanotechnology Masters Degree, this got me curious as to what has he seen in math? So I asked him what is the hardest subject he had to learn during his student years, he told me it was Group Theory and just by hearing the word theory I could assume it was a hard topic/subject.

So now I ask, what exactly makes Group Theory so hard to learn and understand or what are your thoughts on it? Of course im only still a mere high school student that has much learning ahead, but I want to know what thoughts everyone has about this topic which is technically my teachers "Nightmare".

Just curious, best of luck to anyone studying for a degree!

How did Modus Tollens get its name? and Why is Demorgan's Law even a thing? Can anyone explain this?

MathScript is a small function-based notation: 

sum(i, 1, n, i^2) instead of \sum_{i=1}^{n} i^2, frac(a, b) instead of \frac{a}{b}.

I've been building EasyTeX, a local web app around it, with two editors:

• an expression editor with live MathML preview, plus LaTeX / MathML / AST export
• a document writer that lays out a whole page — sections, numbered equations, figures, tables, references, citations, theorems — and exports LaTeX or a standalone HTML file

Everything runs in your browser. There's no server, and your source is parsed as data, never executed. The engine is a separate platform-independent library with a command-line host that speaks JSON, so the same engine can back a desktop app or a reimplementation in another language.

There's also a full reference (every function, constant, Greek name, named symbol, component, and field)

Hi guys im currently a first year doing bachelor in math honour and wondering what kind of jobs I can get with it other than teacher/professor. I chose the degree cause I was good with high school math but now have no idea what kinda jobs I can get with it. If I were to switch to smth like acturial sciences, statistics or anything of the sort id have to add a year onto my studying which I dont rlly wanna do

Trigonometry Explained Like You're 5 (Seriously)

as the title say i need a discord server to learn math cuz i'm self teaching math n' i just started real analysis a couple of weeks ago n, i realized i really need smb to give me feedback n' the text book are really not enough

The Pythagorean theorem is single handedly the greatest theorem of all time (a^2 + b^2 = c^2)

Honourable mention: Bayes Theorem

Prove me wrong 🤓🤓

I've been thinking about what it really means to be good at mathematics.

Some people can calculate incredibly fast but struggle with unfamiliar problems. Others take longer but have excellent logical reasoning skills.

If you were designing a short maths assessment for school students, which abilities would you prioritise?

• Numerical fluency
• Logical reasoning
• Conceptual understanding
• Problem-solving ability
• Calculation speed

Would love to hear perspectives from maths teachers, students and enthusiasts.

I am student first year fst GI, and i want to ask you about best prof for algébre and analyse

Here's a mental maths trick I really like.

Want to calculate 75² without pen and paper?

Take the first digit (7), multiply it by the next number (8), and put 25 at the end.

7 × 8 = 56

So, 75² = 5625.

It also works for:

35² = 1225

95² = 9025

And even 115² = 13225.

Does anyone know a simple way to explain why this works, especially to school students?

I'd also love to hear other shortcuts that are useful for teaching maths.

Hello. I'm self studying calc 2. All this time I had been doing it on my own using 3 key resources.

​James Stewart's Early Transcendentals.

​Professor Leonard on youtube.

​Google search for help.

​I taught myself from Pre Calc to Calc 2 over the course of this year (From Jan 2026 to Oct 2026). I can grind the exercises in the book, some even exercises as well. However I still feel like my foundations are shaky.

​I recently attended an advanced pure math lecture with my elder sibling, and although I "knew" or recognised the key steps, the depth and explanations stuck. No YouTube video I watched provided this. I can't afford advanced, above my grade pure math classes.

​What can I do to get the same depth as a lecture attender?

I am a student from India thinking of applying to VU Amsterdam for my bachelors. I wanted to know the quality of the pure maths department over there, especially in things along the lines of category theory, algebraic geometry, algebraic topology, number theory,etc .

Apologies for the rant, I just figured I should ask this sub for input.

I’m currently in my second year of community college and preparing to transfer and start at a 4-year uni in fall. I’ve been pretty scared and honestly felt pretty down. Everyone who majors in math already had an interest in the subject for almost as long as they’ve been alive. I don’t develop an interest until the summer before starting CC.

There’s this one guy in my calculus 3 class, and he always seems to know the answers to the questions. I spoke to him, and he told me he took AP Calculus in high school. I’ve never taken an AP class. Hell I got a 450 on the math portion of the SAT. My first semester started with accelerated precalculus. Even though I got to calculus 3 with A’s, I still feel like I don’t know anything. It’s like I’ve even forgotten basic algebra.

Doesn’t help that I still don’t know proofs or linear algebra. Everyone usually has these courses done their first or second year. I won’t have that finished until my 3rd year (it would be my first year at the university but I would’ve been in college for 3 years).

I know it’s not a race, but it’s sort of discouraging. It doesn’t help that I want to go to grad school, but it’s like I know I’m going to get tripped up by proofs and it could possibly delay my graduation even more.

Don’t know if it’s relevant, but I do have ADHD. I’ve already started treatment for it, and things should hopefully get better. While I’m on that topic, I know medication can give up a bunch of motivation, but I feel like I need to actually narrow down what I actually need to focus on. Any suggestions/ideas?

Hi everyone what the best way to study these subjects for my university exam (keep in mine I have not studied math in like 2.5years)?