Turn on thread page Beta

Greatest practical use of maths & why? watch

    Offline

    0
    ReputationRep:
    (Original post by EEngWillow)
    I guess I can go fairly specific - in my opinion the best use of maths (so far) was in forming Maxwell's Equations (below), which describe everything to do with electromagnetism. Everything.

    \begin{array}{l} 

 \nabla  \cdot \mathop E\limits^ \to   = \frac{\rho }{{ \in _0 }} \\  

 \nabla  \times \mathop E\limits^ \to   =  - \frac{{\partial \mathop B\limits^ \to  }}{{\partial t}} \\  

 \nabla  \cdot \mathop B\limits^ \to   = 0 \\  

 \nabla  \times \mathop B\limits^ \to   = \mu _0 \mathop J\limits^ \to   +  \in _0 \mu _0 \frac{{\partial \mathop E\limits^ \to  }}{{\partial t}} \\  

 \end{array}
    I pine after the day I understand partial differential equations.
    Offline

    13
    ReputationRep:
    (Original post by EEngWillow)
    I guess I can go fairly specific - in my opinion the best use of maths (so far) was in forming Maxwell's Equations (below), which describe everything to do with electromagnetism. Everything.

    \begin{array}{l} 

 \nabla  \cdot \mathop E\limits^ \to   = \frac{\rho }{{ \in _0 }} \\  

 \nabla  \times \mathop E\limits^ \to   =  - \frac{{\partial \mathop B\limits^ \to  }}{{\partial t}} \\  

 \nabla  \cdot \mathop B\limits^ \to   = 0 \\  

 \nabla  \times \mathop B\limits^ \to   = \mu _0 \mathop J\limits^ \to   +  \in _0 \mu _0 \frac{{\partial \mathop E\limits^ \to  }}{{\partial t}} \\  

 \end{array}
    Completely agree with this, but then as a Physicist I guess I would!
    • Thread Starter
    Offline

    13
    ReputationRep:
    (Original post by EEngWillow)
    I guess I can go fairly specific - in my opinion the best use of maths (so far) was in forming Maxwell's Equations (below), which describe everything to do with electromagnetism. Everything.

    \begin{array}{l} 

 \nabla  \cdot \mathop E\limits^ \to   = \frac{\rho }{{ \in _0 }} \\  

 \nabla  \times \mathop E\limits^ \to   =  - \frac{{\partial \mathop B\limits^ \to  }}{{\partial t}} \\  

 \nabla  \cdot \mathop B\limits^ \to   = 0 \\  

 \nabla  \times \mathop B\limits^ \to   = \mu _0 \mathop J\limits^ \to   +  \in _0 \mu _0 \frac{{\partial \mathop E\limits^ \to  }}{{\partial t}} \\  

 \end{array}
    truly beautiful equations
    Offline

    11
    ReputationRep:
    Scaring people who haven't taken it past GCSE level.
    Offline

    11
    ReputationRep:
    (Original post by wcp100)
    I pine after the day I understand partial differential equations.
    There's a bit of vector calculus in there too...
    Offline

    0
    ReputationRep:
    (Original post by EEngWillow)
    There's a bit of vector calculus in there too...
    Well I never....
    Offline

    11
    ReputationRep:
    ...Actually I'd like to throw the wave equation into my original post as well.

    \dfrac{\partial^2q}{\partial t^2} = c^2\dfrac{\partial^2q}{\partial x^2}
    Offline

    0
    ReputationRep:
    (Original post by EEngWillow)
    ...Actually I'd like to throw the wave equation into my original post as well.

    \dfrac{\partial^2q}{\partial t^2} = c^2\dfrac{\partial^2q}{\partial x^2}
    That I do recognise.
    Offline

    10
    ReputationRep:
    It's the world's only universal language. I consider that to be hugely practical.

    I just wish I understood it better :/ My father was an amazing mathematician, but I've seemingly inherited my mother's ineptitude for it.
    • Thread Starter
    Offline

    13
    ReputationRep:
    (Original post by Hasufel)
    differentiaL equations - to model real-life problems
    sorry to see this was negged - perhaps by somebody who is struggling to break through with them possible
    • Thread Starter
    Offline

    13
    ReputationRep:
    (Original post by DisconcertingWink1)
    It's the world's only universal language. I consider that to be hugely practical.

    I just wish I understood it better :/ My father was an amazing mathematician, but I've seemingly inherited my mother's ineptitude for it.
    Don't think you can be that bad a) you're here b) you've got a 3-star rating

    I have looked at some of the other forums, espo History and Economics, and nobody seems to be humble like some of us are.

    I think at least that we appreciate what we know, what we don't know and (in general) have respect for those uber-maths types who you get on here occasionally to wow us (well me) with their specialism.
    Offline

    14
    ReputationRep:
    (Original post by Andythepiano)

    I have looked at some of the other forums, espo History and Economics, and nobody seems to be humble like some of us are.
    With History and Econ, it's unlikely anyone knows all the facts, and you can support many opinions which is what I think harbours all those elitist 'my opinion should be fact' types, but when you stick 4 vector calculus equations in front of someone who doesn't have a clue, they'll concede so, or look a total idiot without any chance of redemption.


    The greatest practical use of maths, I would say, is more generally for the fields of Physics and Computer science.
    Offline

    14
    ReputationRep:
    U = Q - W

    One of the thermodynamics equations. Simple yet so important in engineering.

    Sending people into space, building power stations, driving a car are some of the few things which could not be accomplished without it.
 
 
 
Reply
Submit reply
Turn on thread page Beta
Updated: September 30, 2011

University open days

  • Manchester Metropolitan University
    Postgraduate Open Day Postgraduate
    Wed, 14 Nov '18
  • University of Chester
    Chester campuses Undergraduate
    Wed, 14 Nov '18
  • Anglia Ruskin University
    Ambitious, driven, developing your career & employability? Aspiring in your field, up-skilling after a career break? Then our Postgrad Open Evening is for you. Postgraduate
    Wed, 14 Nov '18
Poll
Have you ever experienced bullying?
Useful resources

Make your revision easier

Maths

Maths Forum posting guidelines

Not sure where to post? Read the updated guidelines here

Equations

How to use LaTex

Writing equations the easy way

Equations

Best calculators for A level Maths

Tips on which model to get

Student revising

Study habits of A* students

Top tips from students who have already aced their exams

Study Planner

Create your own Study Planner

Never miss a deadline again

Polling station sign

Thinking about a maths degree?

Chat with other maths applicants

Can you help? Study help unanswered threads

Groups associated with this forum:

View associated groups

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Write a reply...
Reply
Hide
Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.