Which is the better choice, linear algebra or differential equations?

Click For Summary

Discussion Overview

The discussion centers on the choice between taking linear algebra or differential equations for an undergraduate physics major. Participants explore the relevance and applications of each subject in relation to physics coursework and future studies, emphasizing the importance of both subjects in various areas of physics.

Discussion Character

  • Debate/contested
  • Exploratory
  • Conceptual clarification

Main Points Raised

  • One participant notes that both subjects are fundamental for physics and suggests taking both as early as possible.
  • Another participant mentions that linear algebra is particularly useful for quantum mechanics, while differential equations are more relevant for thermodynamics and classical mechanics.
  • Some participants argue that a basic understanding of differential equations can be acquired through physics courses, while others emphasize the necessity of formal coursework in both subjects.
  • It is mentioned that some schools require linear algebra before differential equations due to the appearance of matrices in differential equations.
  • A participant shares their experience of taking differential equations before linear algebra and notes that linear concepts emerged during their differential equations class.
  • Another participant suggests that one might learn a significant amount of linear algebra within a differential equations class.

Areas of Agreement / Disagreement

Participants generally agree that both linear algebra and differential equations are important for physics, but there is no consensus on which should be taken first or prioritized. Multiple competing views remain regarding the timing and necessity of each subject.

Contextual Notes

Some participants express uncertainty about the specific requirements of their physics programs and how the choice between the two subjects may impact their studies. There are also varying opinions on the sufficiency of learning differential equations without prior knowledge of linear algebra.

Wm_Davies
Messages
51
Reaction score
0
I am an undergraduate physics major and I have a choice of taking linear algebra or differential equations in the fall. I was wondering which class would benefit me and my choice of a major more. Obviously I will talk this out further with my advisor, but I am looking for some outside opinions.

Thank you.
 
Physics news on Phys.org
You'll need to take both in due time, I took linear algebra first, but it is useful to be able to solve some basic differential equations for solving simple harmonic oscillators in your first mechanics and E/M courses. In my school, the physics professor "taught" how to solve the DE's we needed to solve as we went along. Not rigorous enough for further study, but it allowed us to get by before taking a DE class. Your advisor should be able to tell you what you will be expected to know in your physics classes.
 
depends on what you do. if you want a future in quantum mechanics go with linear algebra. if you want thermodynamics and classical mechanics you probably will want differential equations. regardless you should take both eventually.
 
Take Linear first. There's not any area of math where the ideas from Linear don't come in handy (including, as a previous poster pointed out, in DE's).
 
Differential equations comes up a lot, but like others have said, if you do well enough in calculus, you can probably pick up enough to get you one your way. Linear algebra, I haven't used much yet, but it's starting to creep up in the quantum mechanics class I'm currently taking... but differential equations hit us right from the start in this class. So yeah, both are really important & you really needed them both. Some schools require linear before differential, this is because in differential you'll see matrices pop up, although I did it backwards, I took differential before linear.
 
Both are absolutely fundamental for physics. Take both as early as you can. I took them simultaneously over the summer.
 
I would suggest both. That being said, however, you might end up learning allot of linear algebra in a differential equations class (I know I did), so if you have to choose one...
 
kuahji said:
Differential equations comes up a lot, but like others have said, if you do well enough in calculus, you can probably pick up enough to get you one your way. Linear algebra, I haven't used much yet, but it's starting to creep up in the quantum mechanics class I'm currently taking... but differential equations hit us right from the start in this class. So yeah, both are really important & you really needed them both. Some schools require linear before differential, this is because in differential you'll see matrices pop up, although I did it backwards, I took differential before linear.
You can't do PDE's properly without linear algebra either.
 
Thanks for the input. After reviewing both subjects I feel that it is best to take both. My major only requires me to have up to multivariable calc, but I can see where more training in math would greatly benefit me.
 

Similar threads

  • · Replies 16 ·
Replies
16
Views
3K
  • · Replies 6 ·
Replies
6
Views
2K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 6 ·
Replies
6
Views
2K
  • · Replies 19 ·
Replies
19
Views
2K
  • · Replies 11 ·
Replies
11
Views
5K
  • · Replies 9 ·
Replies
9
Views
2K
  • · Replies 11 ·
Replies
11
Views
3K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 7 ·
Replies
7
Views
2K