Recent content by gobberpooper

I have two independent variables (rotation in degrees, and distance from best focus distance in mm) and one dependent variable (1/e^2 width squared in mm^2). How would I go about creating either a multivariable function or a differential equation to describe the data? I've attached the raw data...

any more? anybody?

yup that's the kind of stuff I am looking for, thanks!

I read through that 800 something page Dover book on differential equations, but I feel like I haven't had enough practice. I need several problems and solutions, but mostly Laplace transform problems. In fact even just Laplace transform problems would be greatly appreciated.

I found khanacademy to be pretty good for calculus. After a good amount of worksheets, I was able to do about 3/4 of the BC Calculus exam in my head(and I'm a very slow minded person) but I'm very disappointed that he didn't talk about differentiating or integrating parametric or polar...

This is where I learned calculus from last month. After a bit more practice, on to differential equations!