Which is more important: Partial DiffE or Complex Variables

In summary: Thanks for the input!In summary, Maxwell says that the complex variable class will be incredibly useful and that he would (tentatively) disagree with Manchot who says that the class is redundant.
  • #1
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I am majoring in EE and have the option of taking either of these classes. I have to take Calc 1-3, Ordinary DiffE, and Linear Algebra. So after these classes is PDE or Complex Variables more useful to electrical engineers?
 
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  • #2
I'd say complex analysis, but I'm not sure what-all is covered in the PDE class. Can you post the syllabus of each?
 
  • #3
Sure. Here they are:
Complex Variables:
Analytic functions, power series, residues and poles, conformal mapping, and applications.

Partial Differential Equations:
Classification of second order equations, characteristics, general theory of first order equations, Dirichlet problem for Laplace's equeation and Green's functions, eigenvalue problems, and variational methods.
 
  • #4
Both of these classes have one different prerequisite. So whichever class I would take I would have to take the prereq for that class too. The pre req for Complex Variables is Calculus of Several Variables, and the pre req for PDE is Intermediate Differential Equations (ODE 2?). Here are the discriptions of those classes:

Calculus of Several Variables:
Differential and integral calculus of functions of several variables, vector anylasis, Stokes' Theorem, Green's Theorem and applications.

Intermediate Differential Equations:
Systems of differential equations, series, solutions, special functions, elementary partrial differential equations, Sturm-Liouville problems, stability and applications.
 
  • #5
The class listings help a lot. For an EE, the complex analysis track will be way more useful. The PDE track looks to have some fun stuff as well, but in EE you'll use complex analysis almost constantly, so getting extra background on it will be a big plus, IMO.
 
  • #6
I'm not sure if they would introduce you to Fourier Transforms in PDE, if they did that would be useful in EE.

My first choice would be Complex variables, but if you could take both classes definitely take them.
 
  • #7
I would say complex variables for sure. That class would be VERY useful in your studies.

Since I know the course schedule that you have planned out for yourself -- and correct me if I'm wrong, but you plan to take this class before you take your higher level engineering classes -- the complex variable class will be so incredibly useful it's not even funny.

The PDE would be a nice class to take, but you use complex variables a lot in your engineering courses -- linear systems, signals, controls, power, communications, etc. Very, very useful.
 
  • #8
waht said:
I'm not sure if they would introduce you to Fourier Transforms in PDE, if they did that would be useful in EE.

He would most likely see the Fourier series in PDE – using it to derive the heat equation, I think. I don't believe they introduce the Fourier Transform, however. I have a friend who's doing mechanical engineering, and he just took his PDE class, and he told me that he learned the FS, but not the FT.

Then again, it could be different at his university. My friend’s class was dedicated to ME's, so they may have altered the standard curriculum a bit.
 
  • #9
Thanks for the input everyone. Yes Maxwell, you are right. I will take this class before I take any of the upper level engineering courses.
Hey Maxwell, I was thinking about what you told me a few weeks ago when I told you my academic plan. You said that it would probably be most benificial if I were to minor in physics and math as oppose to computer science and math since I will probably specialize in photonics. So I checked out what I would need to take to minor in physics, and it turns out that I would only have to take a few extra classes, and they look very fun and usefull. I am now pretty sure that I am going to minor in math and applied physics now and drop the whole computer science thing all together. Thanks for the advice.
 
  • #10
I know everyone here is saying complex variables, but I'd (tentatively) disagree. At my school, a lot of the complex math is taught inside the core EE courses, which almost makes complex variables seem redundant. I'd suggest that you look into whether your department is similar.
 
  • #11
Good call Manchot. I will definitely do that.
 

Related to Which is more important: Partial DiffE or Complex Variables

1. What is the difference between Partial DiffE and Complex Variables?

Partial Differential Equations (Partial DiffE) are mathematical equations that involve multiple independent variables and their partial derivatives. Complex Variables, on the other hand, are numbers that have both real and imaginary components. In mathematics, they are represented as z = x + iy, where x and y are real numbers and i is the imaginary unit.

2. Which one is more commonly used in scientific research?

Both Partial DiffE and Complex Variables are important and widely used in scientific research. However, the specific field of research will determine which one is more commonly used. For example, Partial DiffE is often used in physics and engineering, while Complex Variables are commonly used in fields like mathematics, statistics, and signal processing.

3. Can Partial DiffE and Complex Variables be used interchangeably?

No, Partial DiffE and Complex Variables cannot be used interchangeably. While they both deal with mathematical equations, they have different applications and uses. Partial DiffE is used to model physical phenomena, while Complex Variables are used to solve mathematical problems.

4. Which one is more difficult to learn?

This is subjective and depends on the individual's background and familiarity with mathematical concepts. Some may find Partial DiffE more challenging due to its complexity and the use of multiple variables, while others may find Complex Variables more challenging due to the use of imaginary numbers and complex manipulation.

5. Can one be used without the other?

Yes, Partial DiffE and Complex Variables can be used separately depending on the problem at hand. In some cases, one may be more applicable than the other. However, there are also cases where both are used together, such as in the study of fluid dynamics, where Partial DiffE is used to model the fluid flow and Complex Variables are used to solve the equations.

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