Cubers and math

[THE_V01DL0RD]

you just have to know a square + b squared = c squared

no, its More than that. it's multi step trignometry

 

[Eric4112]

no, its More than that. it's multi step trignometry

oh i see nevermind

 

[EvanCuber1]

for pi day i learned 5 more digits of pi
now i know 3.14159265358979323

 

[Caleb Valenzuela]

algebra is pretty fun right now imo

 

[qwr]

algebra is pretty fun right now imo

"Algebra" like they teach in middle school is not real algebra yet

 

[Curunír]

Homeschool is the best response to the flaws of the public school system (as mentioned in some of the comments above. But the child has to be willing to work hard and learn and the parents have to fully commit to teaching their children. If both sides don't commit to this, that's when homeschooling seems to fail (it doesn't; the parents and child failed the process).

coming from someone who has been homeschooled her whole life
I think homeschooling can be good offering benefits like
1: study environments and schedules to suit the student
2: depended on what curriculum you do but being able to work on your own pace rather than the pace of the class
3: not having to be in the social life of school (which is both a benefit and a downside)

but it has the potential to be bad with things like
1: people with very religious and/or strongly political beliefs that use the environment of homeschooling to indoctrinate their kids.
2: it can be harder to socialise with other people

I think that homeschooling can be good if done right but fairly often homeschooling is used by people who just want to have total control over their child's education

 

[LeafeonSage]

Do you like math?

Do you have a major in math?

(aa)+(bb)=(cc)

 

[LeafeonSage]

"Algebra" like they teach in middle school is not real algebra yet

wut? i haven't experienced anything?

 

[Caleb Valenzuela]

"Algebra" like they teach in middle school is not real algebra yet

oh man

 

[qwr]

wut? i haven't experienced anything?

oh man

Yep. Open up any book on Abstract Algebra like Dummit and Foote (actually I think the book is very dry so find another one)

They probably lied to you and told you the rank of a matrix is the number of pivots in Gaussian elimination or something. And they didn't really tell you what the determinant is at all. It's such a bad way to understand it. Really a matrix is a linear map and the rank is the dimension of the image, that is the output vector space. And the so-called rank-nullity theorem follows as a consequence of the first isomorphism theorem.

 

[CubeLite]

"Algebra" like they teach in middle school is not real algebra yet

I'm scared of that, my brother (in University) told me that there are also "not real" numbers

 

[caleb_g]

i just randomly decided to memorize 50 digits of e as well

 

[LeafeonSage]

I know 26 digit of pi

 

[qwr]

I know 7 digits and I don't need any more

 

[Puzzle Maniac]

I know 7 digits and I don't need any more

I thought you were talking about osu! for a second

 

[Curunír]

I'm scared of that, my brother (in University) told me that there are also "not real" numbers

if you think about it no number is actually real

 

[qwr]

if you think about it no number is actually real

Did you know the real numbers are a lot more finnicky than the complex numbers? Real analysis is about how weird the reals are and complex analysis is about how nice the complex numbers are

 

[BenChristman1]

Yep. Open up any book on Abstract Algebra like Dummit and Foote (actually I think the book is very dry so find another one)

They probably lied to you and told you the rank of a matrix is the number of pivots in Gaussian elimination or something. And they didn't really tell you what the determinant is at all. It's such a bad way to understand it. Really a matrix is a linear map and the rank is the dimension of the image, that is the output vector space. And the so-called rank-nullity theorem follows as a consequence of the first isomorphism theorem.

View attachment 39163

I'm in Intro to Linear Algebra right now, and we're just in the middle of talking about vector spaces, their properties, proving something is a subspace of a vector space, etc. I'm taking Abstract Algebra next semester, so this stuff looks fun (kinda sorta sarcasm lol).

 

[ProStar]

I'm scared of that, my brother (in University) told me that there are also "not real" numbers

I strongly dislike the naming of numbers involving square roots of negatives as “imaginary”. It gives the impression that mathematicians are making things up just for the sake of it, when in reality they are a logically sound deduction for how to deal with the square roots of negative numbers. They’re even used in the real world, albeit with very specific applications (electrical engineering and certain high-level areas of physics, mainly).

 

[BenChristman1]

I'm scared of that, my brother (in University) told me that there are also "not real" numbers

Did you know the real numbers are a lot more finnicky than the complex numbers? Real analysis is about how weird the reals are and complex analysis is about how nice the complex numbers are

I strongly dislike the naming of numbers involving square roots of negatives as “imaginary”. It gives the impression that mathematicians are making things up just for the sake of it, when in reality they are a logically sound deduction for how to deal with the square roots of negative numbers. They’re even used in the real world, albeit with very specific applications (electrical engineering and certain high-level areas of physics, mainly).

I actually recently wrote a paper for my History of Math class about imaginary/complex numbers. It is a very simple and relatively short (5 page) summary of how the idea came about and I also briefly touch on its use in Euler’s formula and electrical engineering. (If anyone wants to read my B- paper I can DM it to you lol)

@ProStar I totally agree that “imaginary number” is not a great name for the root of a negative. They are very useful in fields that involve people way smarter than I’ll ever be