<p>Glad there is some one interested in math. There is too much negative stigma attached to liking math, but I have handled it well since I don’t even take math in my school anymore =D</p>
<p>Have I misread you, that you haven’t taken Linear? If so, put it off until you took ODE.</p>
<p>I had been recommended a ton of textbooks for this stuff. Basically when you get to math at this level, there are two types of textbooks: one that shows you how to do the problems, and one that shows you why you are doing it (applications). </p>
<p>I would love to take the latter approach, which teaches based on a discovering process, much like reinventing the wheel, then the axles, then build a car. </p>
<p>Have you heard of the MIT online course program? They have a lot of free class notes. But for basic math classes they have video lectures, which is awfully cool. I found this with a buddy a couple weeks ago and we were just going to listen to linear algebra lectures. </p>
<p>This is the “most viewed” page. You will see ODE and linear on the top courses.
[Free</a> Online MIT Course Materials | Most Visited Courses | MIT OpenCourseWare](<a href=“http://ocw.mit.edu/OcwWeb/web/courses/visits/index.htm]Free”>http://ocw.mit.edu/OcwWeb/web/courses/visits/index.htm)</p>
<p>If you have itunes, you can find all the lectures through “iTunes U.” I downloaded all of them at once with my U.'s fast internet. </p>
<p>Books? I used a traditional textbook. But after taking the class the consensus is that textbooks suck. You need to read treatise and writings of mathematicians who “gets it.” They show you what the hell you just learned instead of learning strange methods to solve problems, which you don’t understand what the importance is.</p>
<p>I was recommended with this:
[Amazon.com:</a> Ordinary Differential Equations: Morris Tenenbaum, Harry Pollard: Books](<a href=“http://www.amazon.com/Ordinary-Differential-Equations-Morris-Tenenbaum/dp/0486649407]Amazon.com:”>http://www.amazon.com/Ordinary-Differential-Equations-Morris-Tenenbaum/dp/0486649407)</p>
<p>Just a side note. It is really EASY to learn math on your own. It’s not like a history or bio class in which you must memorize a lot. In reality you can go through a lot of these courses in a week or so, with absorbing 80% of the material (which is good, because think about how much you remember about Euler’s method right now? Not that much. But you still get the big picture of calculus). Why I say this is because you don’t have homeworks and tests bogging you down. Practicing is just not a part of my learning philosophy. I think getting the theory down is enough, because eventually you are going to use softwares and other aids. You just have to know what typing in a command means, instead of blindly copy and pasting letters and alphabets.</p>
<p>My friend and I counted it and it’s very possible to get a math major in a summer, getting the material down at least, without the certification or accredation, also excluding the thesis.</p>