Brushing up on calc to prepare for QM

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Discussion Overview

The discussion revolves around preparing for quantum mechanics (QM) by brushing up on calculus and related mathematical topics. Participants share their thoughts on which mathematical concepts and resources are essential for a solid foundation in QM, touching on various textbooks and their contents.

Discussion Character

  • Exploratory
  • Debate/contested
  • Technical explanation

Main Points Raised

  • One participant expresses the need to master calculus to prepare for QM, referencing specific topics and functions mentioned in Griffiths' book but excluding them from study recommendations.
  • Another participant emphasizes the importance of being comfortable with linear algebra and partial differential equations (PDEs) in addition to calculus for QM preparation.
  • A different participant advises against using Griffiths' book, suggesting M Boas' Mathematical Methods in the Physical Sciences as a better alternative, along with Landau and Lifgarbagez's book for an introduction to QM.
  • Concerns are raised about Griffiths' book being poor in explanations, with some participants preferring resources that provide answers to exercises, such as Schaum's Outline of Advanced Mathematics for Engineers and Scientists and Advanced Engineering Mathematics by Kreizig.
  • One participant stresses the importance of developing geometric and physical intuition for calculus, particularly regarding the meanings of derivatives and integrals, as well as specific techniques like integration by parts and the use of polar and spherical coordinates.

Areas of Agreement / Disagreement

Participants express differing opinions on the suitability of Griffiths' book for learning QM, with some recommending alternatives. There is no consensus on which resources are definitively the best for preparing for QM, indicating multiple competing views.

Contextual Notes

Participants highlight the need for a solid understanding of various mathematical concepts, but there is uncertainty about the best resources and methods for achieving this understanding. Some participants express dissatisfaction with certain textbooks due to lack of explanations or solutions, which may affect their learning experience.

robertjford80
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I make way too many mistakes in calc so I'm going to go back and brush up so as to prepare for the exciting moment when I finally start studying QM. I'm using the Thomas text on calc, it's contents are listed below. What sections do you think I should really master. Plus David Griffiths' book uses Legendre, Hermite and Laguerre polynomials, spherical harmonics, Bessel, Neumann and Hankel functions, Airy functions and even the Riemann zeta function, plus Fourier transforms, Hilbert spaces, hermitian operators, Clebsch-Gordan coefficients and Lagrange multipliers, so you don't need to recommend studying those.

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I just finished my first quantum mechanics course and really you should be comfortable with all of these topics. More than anything we used math from linear algebra and PDE's so calculus is just one area of math that you should study to prepare for quantum mechanics.
 
Uuuugh, stay away from Griffiths buddy, for your own good

Pick yourself up a copy of M Boas' Mathematical Methods in the Physical Sciences and read up on whatever you need to know when you encounter it.

I'd also recommend the first third of Landau and Lifgarbagez book on non relitivistic QM as an intro to QM over Griffiths' book.
 
genericusrnme said:
[...]

Pick yourself up a copy of M Boas' Mathematical Methods in the Physical Sciences and read up on whatever you need to know when you encounter it.
[...]

To me Arfken and Weber's book is a valid alternative, too.
 
as for Griffith's book, yea, I looked at it and it looked extremely poor on explanations which is what I hate more than anything. I'm just going to use that book in case I can't find a problem explained elsewhere, or maybe that will be the last book I read before I move on to QFT. As for Arken, that book gets really bad reviews on Amazon.com. I think the solution manual has no answers. I hate books without answers. There's no point in doing exercise if you can't find out if you've done it right.
 
robertjford80 said:
as for Griffith's book, yea, I looked at it and it looked extremely poor on explanations which is what I hate more than anything. I'm just going to use that book in case I can't find a problem explained elsewhere, or maybe that will be the last book I read before I move on to QFT. As for Arken, that book gets really bad reviews on Amazon.com. I think the solution manual has no answers. I hate books without answers. There's no point in doing exercise if you can't find out if you've done it right.

You could try Schaum's Outline of Advanced Mathematics for Engineers and Scientists by Spiegel or Advanced Engineering Mathematics by Kreizig; both have the same maths as Boas but they are both far more organized and less wordy so they get straight to the point. The schaum's is chock full of fully solved problems and examples; Kreizig is too and I believe it has a separate solution manual.
 
If your goal is calculus for physics then make sure you have developed your geometric/physical intuition for calculus. What does the derivative mean physically (usually)? The integral? What's the logic behind the derivative tests?

Otherwise - outside of knowing how to take derivatives and integrals - specifically review integration by parts, polar and spherical coordinates, and complex numbers.
 
Jorriss said:
If your goal is calculus for physics then make sure you have developed your geometric/physical intuition for calculus. What does the derivative mean physically (usually)? The integral? What's the logic behind the derivative tests?
That's the hardest part, but I'm working on that.
 

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