Hi. I am setting up math courses at ASU, and I am in a kind of bind. The original course that I was signing up for, required me to send in material that I've covered so I could be verified, however, without warning, they marked me as already finishing the course due to that material. So although I am past that course, I still need a math course for the Spring. The other ones that I was planning on taking do not exist anymore, so I have gotten down to two courses that would best fit me and are offered this Spring. Elementary Differential Equations, and Modern Differential Equations. The problem is that I cannot fit the times for Elementary Differential Equations into my schedule, so I am forced to take Modern Differential Equations. Although they told me that I can take either course, is it smart to take Modern Differential Equations without ever taking Elementary Differential Equations (or any differential equations beyond that covered in calculus and multivariable calculus).