Hey all, I want to try and pass a proficiency exam for my universities version of ode. Here (http://www.math.uiuc.edu/Bourbaki/Syllabi/syl285_edwards-penney.html). What book would you all recommend? (I prefer rigor, but also like ease of read if there is a good middle ground). I will only have 4 weeks to study at the beginning of summer. I will also be working, but I can still dedicate at least 15 hours a week and upwards of 25. Also I've self studied book of proof by Richard hammock and kleppner and kolenkow introduction to mechanics. I've not struggled with any concept in Calc 2 or 3 and I love math as a whole. Just to give a bearing for how I may handle the material. Do you think it's possible to do this while understanding the material? I need a good base for fluid mechanics and heat transfer, but I'd like to save $1200 by testing out if at all possible.