Take partial differential equations or not

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Discussion Overview

The discussion revolves around the relevance and importance of partial differential equations (PDEs) in the field of mechanical engineering, particularly for undergraduate students considering taking a PDE course. Participants explore the differences between ordinary and partial differential equations, the applicability of PDEs in industry versus academia, and recommendations for textbooks on the subject.

Discussion Character

  • Debate/contested
  • Conceptual clarification
  • Technical explanation
  • Homework-related

Main Points Raised

  • Some participants assert that PDEs are very important in various engineering fields, suggesting that students should take the course.
  • Others argue that while PDEs are valuable for graduate studies, they may be less critical for entry-level positions in industry, where basic knowledge from undergraduate courses might suffice.
  • A participant mentions using PDEs daily in their industry role, countering the claim that they are extraneous for industry jobs.
  • Concerns are raised about the necessity of advanced mathematics in less research-oriented engineering roles, with some suggesting that computational tools reduce the need for deep mathematical understanding.
  • Fourier series are mentioned as a technique for solving differential equations and are noted to be included in the PDE course curriculum.
  • Participants discuss specific PDEs, such as the wave equation, heat equation, and Laplace's equation, questioning their relevance to mechanical engineering.
  • Recommendations for textbooks include "Applied Partial Differential Equations" by Haberman and "Fourier Series and Boundary Value Problems" by Brown and Churchill.

Areas of Agreement / Disagreement

There is no clear consensus on the necessity of PDEs for industry roles versus academic pursuits, with multiple competing views expressed regarding their importance and application.

Contextual Notes

Some participants note that the relevance of PDEs may depend on specific job roles within engineering and that the level of mathematical rigor required can vary significantly between different fields and positions.

Who May Find This Useful

Undergraduate students in mechanical engineering or electrical engineering considering advanced mathematics courses, as well as those interested in the application of PDEs in engineering contexts.

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Hi,

I'm an undergrad student on Mechanical Engineer, right now I am taking my last math class in my curriculum, Numerical Analysis. I was thinking of taking the partial differential equations class, that is not in my curriculum, to improve my math skills and knowledge.

But my question is How important is partial differential equations on mechanical engineering? and there is a big different between ordinary and partial differential equations?

People, what do you recommend?
 
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pdes are very important everywhere. take it
 
I am an undergraduate mechanical engineer as well, who decided to take the two course PDE sequence at my school. I think it'd be wise if you're going to grad school, but would be extraneous if you're going into industry.
 
ekrim said:
I am an undergraduate mechanical engineer as well, who decided to take the two course PDE sequence at my school. I think it'd be wise if you're going to grad school, but would be extraneous if you're going into industry.

Yes, I will be going to grad school. I think I will take the course.
 
i wish i had taken it.
 
Would this apply to EE's? (that are not going to grad school for EE)?
 
every EE and ME student should accept the enjoyable torment of PDE.
 
the 3 fundamental pdes are: the wave equation, the heat equation, and laplaces equation.

do any of these topics sound important to your field?
 
mathwonk said:
the 3 fundamental pdes are: the wave equation, the heat equation, and laplaces equation.

do any of these topics sound important to your field?

How about Fourier series?

The pdes course is mixed with Fourier series.
 
Last edited:
  • #10
ekrim said:
I am an undergraduate mechanical engineer as well, who decided to take the two course PDE sequence at my school. I think it'd be wise if you're going to grad school, but would be extraneous if you're going into industry.

How can you say that PDE's are extraneous if going ito industry? I am in industry and I use them every day.
 
  • #11
Dr Transport said:
How can you say that PDE's are extraneous if going ito industry? I am in industry and I use them every day.

Well, at least for entry level engineering jobs and less research oriented engineering jobs (which most engineers with BS degrees and many with MS degrees would hold) do not extensively require advanced mathematics, as most highly computational tasks are done with a computer program. This is just my observation from my limited experience.

However, understanding PDEs and other more advanced mathematical topics are essential to understanding many engineering and physical concepts. For this reason, knowing PDEs is essential.
 
  • #12
user101 said:
Would this apply to EE's? (that are not going to grad school for EE)?

Fourier analysis and PDEs are ubiquitous in any electrical engineering curriculum and are essential for understanding many EE concepts.
 
  • #13
Dr Transport said:
How can you say that PDE's are extraneous if going ito industry? I am in industry and I use them every day.

Sorry, I was just referring to the average out-of-college job, where all the necessary information on PDE's would be learned in your mechanical engineering classes.
 
  • #14
leright said:
Well, at least for entry level engineering jobs and less research oriented engineering jobs (which most engineers with BS degrees and many with MS degrees would hold) do not extensively require advanced mathematics, as most highly computational tasks are done with a computer program. This is just my observation from my limited experience.

However, understanding PDEs and other more advanced mathematical topics are essential to understanding many engineering and physical concepts. For this reason, knowing PDEs is essential.

I wouldn't say that, I work with many young engineers who have nothing but a BS degree and they use PDE's all the time. Having worked in the aerospace industry in the past, everyone from propulsion to thermites to operational analysists work with PDEs...
 
  • #15
fourier series are atechnique for solving des and pdes.
 
  • #16
I would like to buy a book on PDE, to start some reading before I could get the PDE course.

I found the book used by the Math Department "Fourier Series and Boundary Value Problems" but before buying a book I will like to know which book do you guys recommend.

Which book for learning PDE do you guys recommend?
 
  • #17
A fairly standard PDE textbook is "Applied Partial Differential Equations" by Haberman.

Just out of curiosity, is your course textbook "Fourier Series and Boundary Value Problems" by Brown and Churchill?
 
  • #18
las3rjock said:
A fairly standard PDE textbook is "Applied Partial Differential Equations" by Haberman.

Just out of curiosity, is your course textbook "Fourier Series and Boundary Value Problems" by Brown and Churchill?

Yes that's the course book.

Thanks
 
  • #19
las3rjock said:
Just out of curiosity, is your course textbook "Fourier Series and Boundary Value Problems" by Brown and Churchill?

Does the "Fourier Series and Boundary Value Problems" by Brown and Churchill is a good book, because is very very cheap on amazon.
 

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