Recent content by swensonj

It seems to me that the signs on the last two terms of the right-hand side are reversed; should the formula be \frac{d}{dx}\int_{a(x)}^{b(x)} f(x,t)dt= \left(\int_{a(x)}^{b(x)}\frac{\partial f(x,t)}{\partial x}dt\right)+ \frac{db(x)}{dx}f(x,b(x))- \frac{da(x)}{dx}f(x,a(x)) ? I guess so...