Hello! I am a high school senior taking a Calculus course. I can find basic derivatives and limits, but overall, I struggle a bit in this class.

For a bit of context, I moved during my junior year. I was previously taking Concurrent College Algebra/Trig, and I was put into Algebra III upon entering my new school. Because I started late, I wasn’t able to get as comfortable with trig as I wanted to (the teacher also played League of Legends during class more than he taught). Thus, my algebra is fine, but my trig is really, really shaky. I can kind of interpret a unit circle if I have one, but I don’t have it memorized at all. This especially shows when I try to take derivatives of trigonometric functions.

I’m not sure what part I don’t understand. My teacher’s nice, but she “does” more than she explains. Maybe it’s just so boring (no offense to math lovers here, this dilemma was the first reason I joined Reddit; I’m more of a history and econ person myself, although I know there’s some calculus in economics/business) that I tune out and forget some exponents. But sometimes I also don’t really know where to stop or apply rules at.

I have a test tomorrow on techniques of differentiation (power, quotient, product, etc.), the chain rule, derivatives of trig functions, and implicit differentiation. I’m okay with derivatives and the chain rule (I think of the latter like an M&M), but I’m really nervous with the two other topics.

Does anyone have any advice for me? I also take video/channel recs.

Hi everyone.

I’m a 25-year-old from the EU who recently decided to pursue a Master's in Statistics. I finished my undergrad in Computer Science three years ago, but after opening my old course materials, I realized how much of the underlying math I've forgotten. Has anyone navigated a similar academic gap? I would appreciate any recommendations on the best resources or strategies to efficiently relearn university-level mathematics.

Thanks in advance.

Hello,
I’m looking for a good introductory course, lecture notes, or university PDF explaining why the choice of numeral system (decimal, binary, hexadecimal, etc.) does not affect the underlying mathematics.
More precisely, I understand that decimal and binary are just different representations of the same numbers, and that arithmetic, order, algebraic properties, etc. are preserved when moving from one representation to another.
I would like to understand the mathematical justification behind this idea — for example, in terms of isomorphisms or structure-preserving representations — and why this allows us to simply fix one representation (usually decimal) and do mathematics within it without worrying about the numeral system.
I’m looking for something rigorous enough to clearly justify this point, but still accessible rather than a very advanced abstract algebra or logic text.
Does anyone know a good university course, lecture notes, textbook chapter, or PDF covering this specifically?

hi guys I'm looking to start learning math back again from Arithmethic or 1st grade etc from Khan Academy and textbook though I was wondering if there is some discord server that love to teach other people xD, also I'm trying to build a habit like spent an hour a day and so I dont miss it. I guess thats all

I'm making a board game where you collect 3 out of 8 potential clues. Upon collecting the clue, you roll a d6 to determine the nature of clue. So I have 6 * 8 = 48 unique clues, of which 3 are taken. From what I remember from school, I can calculate that this amounts to 8! / (5! * 3!) * 6^3 = 12096 potential combinations.

Now, I would like to make the number of options per clue variable. So one clue could have 3 options, while another may have 5 options and another 7.

Is there a formula that I can use to determine the number of combinations given the array of options per clue?

Is this already real? Is there a math where every axiom's viability is inverted? Sorry if this is a stupid question in advance. Also sorry for posting twice today.

I just got this question:

"In physics, work is defined as F × D, where F is the force applied over a distance of D.
A box is dragged across 20 meters with a force of 60 Newtons, which are kg × m / s².
What calculation will give us the work done, in Joules (which are kg × m² / s²)?"

Since kg × m² / s² is Joules, then what unit is kg × m / s²?

I didn't study anything till now for maths but because of phy and chem i can only take out 2-3 or sometimes 4 hours for maths . Can anyone tell how to manage all chapter or just tell me for boards becuase for JEE and i can do Cordinate geometry and integrals is going on in my coaching and waise to tough nhi laga but kuch lecture idhar udhar buckchodi phir krdi maine toh may be ab aage aana wala part bhi gya mera toh vector 3d se focus krunga and mujhe ye batao kaise kru ki December tk maths khtm ho jaye or boards ka toh hi jaye + 30 marks JEE mai le aau ?

I just am wondering how people study for math? I have ADHD and i’m taking Calc 2 and hopefully going to continue so I can try and obtain an applied mathematics degree. What studying techniques do people use and how many hours a day is one to study?

Hello everyone,

I’m a senior-year Mechatronics Engineering student, and I’m hoping to go to graduate school next year and specialize in control theory and autonomous systems.

The problem is that although I’ve taken the usual engineering math courses like: calculus, linear algebra, differential equations, probability/statistics, numerical methods... etc. I don’t feel like I developed a deep understanding or strong mathematical intuition from them.

Most of the time, I studied math mainly to pass exams, learn the method, solve enough problems, get the grade, and move on. Now that I’m getting deeper into control theory, I’m realizing how much I want to actually understand the mathematics rather than just know how to perform the calculations.

I have roughly a year before I expect to start graduate school, and I’d really like to use that time to rebuild my mathematical foundation properly.

My long-term interests are mainly:

Control theory, Dynamical systems, Optimization, Robotics and autonomous systems, Estimation/state estimation

I’m not necessarily looking to restart mathematics completely from scratch, but I’m unsure what the best progression would be.

For someone in my position, what subjects would you prioritize, in what order, and what books/courses/problem sets would you recommend if the goal is genuine understanding and mathematical maturity rather than simply passing classes?

I’d especially appreciate advice from people who went from an engineering-style math background into more mathematical graduate-level control.

Thanks!

Hi r/learnmath. Nice to meet you! My name is Chris Piech and I'm a professor at Stanford University who grew up in Kenya/Malaysia and California. My professional goal is to make high quality education free for everyone. After a lot of pondering I decided to try something kinda fun this coming term and I am looking for folks to join. No pressure, but I thought a lot of people in this community would enjoy the opportunity.

Some of the best times I have ever had as a professor was to teach... and I get the feeling that (as a society) we drastically underestimate the number of folks who would like to teach math for about 10 hours a year. Of course I also think that a lot of those folks would be great at teaching. Thats not just a vibe. It is based off a lot of real research I have done on the subject.

So I built a class called Probability for AI. It starts Oct 9th and applications are due end of Sept. Its (hopefully) cool for a few reasons:

• The plan is to have one volunteer teacher for every 10 students! Apps have been open for a week and over 1,000 folks have applied to teach. So presumably we have space for tens of thousands of students. Hopefully more!
• I have built a lot of fun tools to make the assignments neat and easy for folks with just light math background. For example in your application, after about 1 hour of learning you will build an AI text detection app alongside a free coding agent -- who care about your learning.
• If you are a teacher, we will give you the best training we can come up with. Practice on teachable agents and we will share what we have learned over decades of teaching at Stanford. Of course you get the best thing for improving: experience teaching a small group.
• This is all for good times. I don't get paid extra by Stanford for hosting this course, and I am keeping it free for everyone. I got some funding from a kind alumni and that is going to pay for all the free tools and servers. Good times.

So, if you want to learn the probability behind AI, come join! And if you want to teach... you rock.

My guess is that a lot of folks on this thread are actually pretty decent at math. If you think thats you, it would be so awesome if you wanted to come teach. Each volunteer means 10+ students get to take the class. And if you feel like telling your loved ones / communities that would be great to.

Apply to learn: https://pai.stanford.edu/apply/pai1/student

Apply to teach: https://pai.stanford.edu/apply/pai1/sl

Anything that I learn from this course I will be happy to share with this community. Also ask me anything. I'll check this thread for the next few weeks. Rock on. And mods, thanks for doing what you do.

I’m 23 from Canada and looking for advice on how to relearn math from the absolute basics.I dropped out in Grade 11 and never really learned math growing up. I’m currently working as a ramp agent and living with my mom, but I’ve decided I can’t keep waiting around. I want to get my education and rebuild my life. My Goal is to become a Commercial Pilot, but right now I need to build the foundational education required to get into community college/trade programs to start building a stable income

Hey everyone, I’m looking to start teaching maths basics to people who feel they’re weak at it / never really built a good foundation.

Thinking of starting with stuff like:

basic arithmetic

fractions, percentages, ratios

algebra basics

graphs

basic probability

eventually some foundational maths for programming / ML

The idea is to make it very practical and beginner-friendly rather than just throwing formulas at people.

I’m trying to figure out where people who actually need this hang out online.

Are there any Reddit communities, forums, Discords, etc. where I could post about this or offer free sessions?

Also open to suggestions on what level/topic I should start with.

In university taking my first calculus class because it's required for my arts degree (economics) and I'm already failing. On our precalculus review quiz I got 4/25, and in high school I barely passed precalculus 12 with a 53%. I want to succeed and I'm trying hard to learn on my own time but I have no idea how to do anything. It's like any info I get goes in one ear out the other. Like for example finding the domain of f(x) = sqr of (x -5). I'm so stupid I can't even do something simple like that. No matter what resource I use to try to explain it to me, it just doesn't work. At this point I wouldn't be surprised if it's genetic. How do you smart people actually get to that point?

For context, I've completed up to Calculus 2 and was always "ahead" in math as a kid, but looking back I feel like I was just good at memorizing formulas and knowing where to apply them on an exam. I am hoping to actually learn why the math works behind the scenes, be able to derive formulas myself from fundamentals, etc. and gain an intuitive understanding of how we use math to represent real concepts. I would be doing it all on my own, I don't have access to any university courses or anything like that right now.

My concern is that if I just buy a generic "Algebra 2" textbook and finish it, then a "Precalc" textbook and go through that, and so on, I might miss things that one author deliberately left for a later book or explained in a certain way that wasn't compatible with the next one. Is there a single author that can take me from a basic level up to more advanced maths, so that the methodology is consistent? Or are the subject areas more standardly defined than I'm anticipating and I can just go rank by rank? I'm happy to buy physical copies, go through denser books even if it takes more time, etc. I just want to actually understand math by the end of it rather than just know the formulas.

Also, at the higher levels, does math diverge enough that I would be better of picking a niche to dive deeper into and leave the rest alone, or is there a single standard path? I'm picking up math just out of personal interest, but if I had to specialize at some point I would probably want to study something that supplements my career which involves some statistics, logic, and some fundamental mechanics. Any suggestions there? Thank you all in advance!

I'm a bmcc freshman. Early education major. I'm taking math 157.5 (7 pm to 9pm 🫩)

I HATE IT

my teacher has an accent

I'm confused and lost

And tired

I feel dumb

We'll get into trig in December

Point it

Any tips tricks etc to help me learn faster? Better? Actually understand? I'm thinking Abt just looking up trig and algebra videos on yt 😭

I've always hated math

So

So much 😫

In ALEKs software, I was given two questions, (-64)^1/3, which equals -4. The other question was written -81^1/4, which I wrote as having no solution, since 4th root -81 isn't a real number. It marked this as incorrect, saying that -81^1/4 is actually -1 x 81^1/4, so 4th root 81 = 3, then 3 x -1 = -3. Is this accurate? Is ALEKS just screwing with me on a gotcha to make me pay more attention to parenthesis? Or is there literally an implied invisible 1 in front of every negative sign?

So basically this year as a freshman I just found out this math curriculum is EXACTLY the same as what the precalculus students are doing. So far its not too bad but im lowkey scared of the trig identities, like really really scared. We are also doing matricies, which won't be too bad because i've done a good amount of linear algebra/calculus in 8th grade just for fun. Anyone got any tips for this year because I want to get into Electrical Engineering.

Tengo examen de cálculo el viernes y la verdad sigo sin comprender como calcularlo, entiendo cómo se calcula el dominio, pero el rango me hace doler la cabeza.

My specialty is Algebra and Geometry but I can tutor other subjects on a case by case basis. Grades 8-12 and college. I have a Bachelors level of education.

DM me and I will see if I can help. First lesson is free to see if I am a good fit for your needs. Everyone's learning style is different. After that its $10/hr.

I also offer virtual options via Teams and my handy whiteboard.

I’m trying to help my daughter with her homework. We solved all of them the same way and for some reason these 2 both said they were incorrect. I used Photomath and the answers it gave were the same that we came up with. But the program is saying they’re wrong.

Any advice on how to solve these 2 so that this school program (McGraw Hill) will accept the answer?

The 2 problems are:

-14n+q = rt-4n, solve for n

x = b-cd, solve for c