What is Mathematics: Definition and 997 Discussions
Mathematics (from Greek: μάθημα, máthēma, 'knowledge, study, learning') includes the study of such topics as quantity (number theory), structure (algebra), space (geometry), and change (analysis). It has no generally accepted definition.Mathematicians seek and use patterns to formulate new conjectures; they resolve the truth or falsity of such by mathematical proof. When mathematical structures are good models of real phenomena, mathematical reasoning can be used to provide insight or predictions about nature. Through the use of abstraction and logic, mathematics developed from counting, calculation, measurement, and the systematic study of the shapes and motions of physical objects. Practical mathematics has been a human activity from as far back as written records exist. The research required to solve mathematical problems can take years or even centuries of sustained inquiry.
Rigorous arguments first appeared in Greek mathematics, most notably in Euclid's Elements. Since the pioneering work of Giuseppe Peano (1858–1932), David Hilbert (1862–1943), and others on axiomatic systems in the late 19th century, it has become customary to view mathematical research as establishing truth by rigorous deduction from appropriately chosen axioms and definitions. Mathematics developed at a relatively slow pace until the Renaissance, when mathematical innovations interacting with new scientific discoveries led to a rapid increase in the rate of mathematical discovery that has continued to the present day.Mathematics is essential in many fields, including natural science, engineering, medicine, finance, and the social sciences. Applied mathematics has led to entirely new mathematical disciplines, such as statistics and game theory. Mathematicians engage in pure mathematics (mathematics for its own sake) without having any application in mind, but practical applications for what began as pure mathematics are often discovered later.
I realize of course that this will probably not apply to all physicists, but at least every physicist in my university's math department is very unrigorous when it comes to mathematics. This is frustrating because some of the physics material seems genuinely interesting, but the lack of an...
Here I want to address of the question if it is possible to make a sum over an uncontable set and discuss integration rules involving uncountably infinite constants.
I will provide introduction in very condensed form to get quicker to the essense.
Conservative part
First of all, let us...
##\frac {1} {x^2 -c^2}## with ##c \neq {0}##
So the first thing I do is split the ##x^2 -c^2## into the difference of squares so ##x +c## and ##x - c##
I then do ##\frac {A} {x + c}## ##+## ##\frac {B} {x-c}##, and then let ##x=c## to zero out the expression. And that is where I am getting...
Hi everyone, I'm fibrebundle. I actually joined this forum because I'm really interested in abstract maths. I'm particularly intereseted in alegebraic topology and geometry at the moment. But I'm also really interested in spectral graph and graph theory. I'm starting grad school in engineering...
I'm in my last 2 years of high school, and I have to pick a speciality to study before becoming an undergraduate and studying in college. In the future, I'm hoping to become an experimental physicist. My high school offers 3 specialities that are relevant to physics to pick from, all of them...
TL;DR Summary: new book with interesting problems
There's a new book out by Routledge called Mathematical Conundrums with many interesting problems in algebra, arithmetic, route-drawing, and logic. Good for schools as algebra is no higher than high school. Challenging though.
I am a curious physics student who wants to learn how to use its knowledge to create things, to understand phenomenons and so on. I am looking for detailed explanations that use physics and maths. (books, websites, videos, etc.)
I remember there was a method of learning/teaching mathematics where all they do in class is to force students to prove the theorems themselves. What was this method again? It was named after someone....
@fresh_42 ?
Doing some self study here; my understanding of order of an element in a group is as follows:
Order of ##3## in ##\mathbb{z_4}## can be arrived by having, ##3+3+3+3=12≡0##
likewise, the order of ##12## in ##\mathbb{z_{20}}## can be arrived by
##12+12=24 ≡4≠0##
##12+12+12=36≡16≠0##...
Hello all,
I've taken math through differential equations and linear algebra, am in my senior year of physics curricula while conducting McNair research regarding General Relativity. I found a NASA document outlining Einstein's field equations, which suggests only preparative familiarity with...
In short, I'm interested in working on a web-app to make landmark papers in theoretical physics and mathematics more broadly accessible, especially to undergraduate and graduate students who are looking to catch up to modern topics (without sacrificing rigor or exactness of understanding), and...
...Out of interest am trying to go through the attached notes,
My interest is on the highlighted, i know that in
##\mathbb{z}/\mathbb{6z}## under multiplication we shall have:
##1*1=1##
##5*5=1## am assuming that how they have the ##(\mathbb{z}/\mathbb{6z})^{*}={1,5}## is that correct...
Is there any particular reason as to why certain texts use ##j## and others ##i## when looking at complex numbers? Maths is a relatively easy subject but at times made difficult with all this mix-up... i tend to use a lot of my time in trying to understand author's language and this is also...
My wife was in Las Vegas over the weekend to visit her sons and grandson, and saw this new structure there, the MSG sphere.
In this image the sphere appears to be a very large basketball. Other images I've seen are of a huge eye, animated fireworks displays, an image of the earth, along with...
In mathematics, there is the Ramanujan summation:
$$1+2+3+4+...=-\frac{1}{12}$$
https://en.wikipedia.org/wiki/1_+_2_+_3_+_4_+_⋯
This sum is used in physics for predicting the Casimir effect:
https://en.wikipedia.org/wiki/Casimir_effect
I have also heard that this sum was used in the string...
I'm trying to figure out how the mathematics of conservation of mass in compressible flow works for a simple setup. I posted this problem in hw physics section, and the conversation turned to the physics model and appears to have gone kaput. This was supposed to be a mathematics question (but...
HI,
I am an International Student studying in the US (at a "liberal arts" small college ranked in the Top 20 as per US News Rankings). I will graduate in 2024 and intend to apply for PhD programs in Mathematical Physics starting October 2023 for admission in 2024.
GPA: I am a double major in...
I stumbled across this article from decades past written by the best EE instructor I ever had. I thought it might be of some passing interest to others in highlighting the difference between memorizing a mathematical result vs. truly understanding it. The essence of engineering, in effect. We...
Considering math as a collection of true/logically consistent statements, I see only two possibilities: either the statement is true and can be proven, which means it's a theorem. Or it's true but cannot be proven, which means it's an axiom. Is there a third possibility? Or maybe more?
I feel...
I found one ages ago about the hyperbolic functions, but it hadn’t been translated to English from German yet. Anyone know of a good book on hyperbolic functions and other transcendental functions besides the circular functions (trigonometric)?
TL;DR Summary: Suggestions for the publication of an article
Hello everyone, I was reviewing and I can't find much content on truncated octahedron formulas, can it be useful to publish an article in a magazine on the subject?. Thank you.
TL;DR Summary: Here I am asking for some opinions and recommendations for mathematically rigorous books that should be taken as an interested physics student. I know the question is quite subjective but any insightful answer is appreciated.
I am willing to join undergraduate physics classes...
Part (a)
##s=ab^t##
##\log s= \log a+ t\log b##
Expression on the right hand side increases linearly with ##t##Part(b)
##s=120 ×1.15^t##
##\log s = \log 120+t\log 1.15##
##\log s =2.08+0.06t##
From graph, y-intercept = ##2.08##
##m=\dfrac{2.45-2.08}{6-0}=0.06##
Part (c)...
A bit confusing here; what i did,
Using gradient, we have,
##m=\dfrac{7-1}{0-3}=-2##
##y=-2x+7##
Since there is a Vertex, we have the other ##m_2=2##
thus,
##y=mx+c##
##1=2×3 +c##
##... y=2x-5##
##a=2, b=-5, c=12## or##a=-2, b=5, c=2##
I am studying Physics to get into a University to study masters in India. But, I do realize how vital a role mathematics plays and I am studying Mathematical Methods for Physical Sciences by Mary L Boas for that.
I have some background in Physics, I did study Physics in high school and...
I have the solution:
## \dfrac{2x-3y}{3z+y} = \dfrac{z-y}{z-x} = \dfrac {x+3z}{2y-3x} ## (1)
## \dfrac{2x-3y}{3z+y} = \dfrac{3(z-y)}{3(z-x)} = \dfrac {x+3z}{2y-3x} ## (2)
##= \dfrac{(2x-3y)-3(z-y)+x+3z}{(3z+y)-3(z-x)+(2y-3x)} ## (3)
##=\dfrac{x}{y}##
My question is how is it possible to go...
TL;DR Summary: I have heard detailed description of what to do when you study physics, but I don't know how to learn Physics in the first place, so this post tries to counter that.
Here's How to Teach Yourself Physics and Math [Futurism]
How To Self-Learn Physics: The Ultimate Guide
How to...
I find it interesting that so many know how to use all kinds of apps on their cell phones, but so few are able to do simple algebra any more. If you ask around, engineers not included, I think you would find very few people e.g. to be able to find the axis of symmetry of the parabola ##...
I am an Indian and even though my English knowledge is somewhat better than that of an average Indian, there isn't a day I try to real highly technical books and fail to understand it at the first glance (or don't understand it at all). I understand why they use language which might seem...
In 12th and considering a career in research. Ik most of the collages ( IIT Kanpur, IISc Bangalore, IISERs etc ) but I am not sure of the research possibilities provided so if anyone can help out please do
Math qyuestion for AI (Skype) include an expression that x is resting on y (both straight line segments). AI insisted that x coincides with y, while my intent was only placing x on y. Does 'rest' have such a narrow definition?
I vaguely (strong word there because I can no longer remember the source, but the idea sticks in my head for 30 years now) recall reading (somewhere long forgotten) that method of separation of variables is possible in only 11 coordinate systems.
I list them below:
1.Cartesian coordinates...
Using integration by parts:
$$I_n=\left. x(1+x^2)^{-n} \right|_0^1+\int_0^{1} 2nx^2(1+x^2)^{-(n+1)}dx$$
$$I_n=2^{-n} + 2n \int_0^{1} x^2(1+x^2)^{-(n+1)}dx$$
Then how to continue?
Thanks
Good Morning
(And apologies if this is not the right forum -- it is not a homework problem.)
On the one hand, a vector is an arrow and a tail: it has magnitude and direction. It is used to describe direction, forces, acceleration, etc.
However, there are more mathematical definitions: a...
Mathematics tends to be more progressive than any other field. But I've heard some people say that some math classes that they took were more difficult than the most advanced math classes that they took. For instance, I've heard people say that Calculus II is more difficult than Calculus III...
Hi all!
I've never been studied the identities and such of secant, cosecant and cotangent. Yet I think, it would be useful to have them in my toolbox. Thus I'm asking, if anyone would know a reasonable book or other kind of material (paper or pdf) about trigonometry that has brief theory...
Hi! I am 12, and will be a 13 in 9th grade ( I skipped 6th grade). I have a curiosity for mathematics and have started preparing to take the AMC 10 and 12 exams. I enjoy solving the ingeniously crafted problems, as I share the sentiment of many math competitors of not being challenged by the...
For this,
Does someone please know why we are allowed to take limits of both side [boxed in orange]?
Also for the thing boxed in pink, could we not divide by -h if ##h > 0##?
Many thanks!