Learning ODEs: Self-Teaching for a Graduate Degree

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The discussion centers on a user transitioning from life sciences to physical sciences and seeking to self-study ordinary differential equations (ODEs) and review multivariable calculus in preparation for a graduate program. The user expresses a love for mathematics but acknowledges a lack of formal training in the physical sciences. They are exploring various study methods, including MIT open course materials, ODE textbooks, and applied techniques books that cover a range of mathematical concepts. The user aims for a deep understanding of the subjects but is constrained by time due to full-time work. Suggestions from other participants include specific textbooks and online video resources that provide concise explanations of differential equations, similar to Khan Academy, to facilitate learning within a limited timeframe.
ryan_a
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Hi everyone,

I have searched all over the site to see if I am repeating a question, but I don't believe that I am.

So I am currently in the life sciences, but I am switching to physical sciences to do a graduate degree in one year. The program, obviously, recommends that I have decent knowledge of ordinary differential equations.

I love maths, but will admit that my formal training is not up to that of a physical scientist's. My goal is to teach myself, as much as possible, ODEs and review my multivariable calculus from a few years ago.

I am trying to decide how best to do this. Should I do MIT open course material on multivariable calc and ODEs? Should I just work through an ODE textbook? Or, should I go the more applied route and use a techniques book that covers everything from Laplace transforms to line integrals (for example, Mathematical techniques, Jordan and Smith)?

In an ideal world, I would learn the pure maths and then how to apply it because I want a deep understanding of the subjects. However, I only have so much time (I work full-time). Would it be smarter for me to just jump into an applications book?

I hope my question is clear. But please ask, I would love to clarify anything.

Thank you all in advance for your help. I hope you are all well.

Ryan
 
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You could check these videos out:

http://mathispower4u.yolasite.com/

and in particular:

https://dl.dropboxusercontent.com/u/28928849/Webpages/DifferentialEquationsVideoLibraryTable.htm

Each topic is roughly 10 mins each, similar to Khan's Academy but simpler in design.
 
Hey, I am Andreas from Germany. I am currently 35 years old and I want to relearn math and physics. This is not one of these regular questions when it comes to this matter. So... I am very realistic about it. I know that there are severe contraints when it comes to selfstudy compared to a regular school and/or university (structure, peers, teachers, learning groups, tests, access to papers and so on) . I will never get a job in this field and I will never be taken serious by "real"...
Yesterday, 9/5/2025, when I was surfing, I found an article The Schwarzschild solution contains three problems, which can be easily solved - Journal of King Saud University - Science ABUNDANCE ESTIMATION IN AN ARID ENVIRONMENT https://jksus.org/the-schwarzschild-solution-contains-three-problems-which-can-be-easily-solved/ that has the derivation of a line element as a corrected version of the Schwarzschild solution to Einstein’s field equation. This article's date received is 2022-11-15...

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