# Search results for query: *

1. ### Second derivative composite function

Thank you pasmith, actually I didn't get comething with the dimensions: if I have g as a vector 2x1 \nabla \nabla \mathbf{f} will be a 2x2 matrix. In the calculus of : \left(\left((\nabla \nabla \mathbf{f}) \cdot \frac{d\mathbf{g}}{dt}\right) \cdot \frac{d\mathbf{g}}{dt}\right)...
2. ### Second derivative composite function

Hi guys, I have this function f(g(t)) and I have to find the second time derivative of f, is it correct the following solution?: f''=∂f/∂g*g'=∇f*g' f ''=∇^2f*|g'|^2+∇f*g'' where ∇^2 is the laplacian function
3. ### Minimum distance between a point and a geometric locus

I'll find that the minimum distance is 0... Already have the coordinate of the point p. i have to find the minimum distance and not a point p that minimize the distance.
4. ### Minimum distance between a point and a geometric locus

http://en.wikipedia.org/wiki/Locus_(mathematics [Broken])
5. ### Minimum distance between a point and a geometric locus

No I don't. I need just the measure of the distance between a given p and the geometric locus
6. ### Minimum distance between a point and a geometric locus

no is not possible. I need a closed form for my problem. actually I need to know if p is inside the intersection of the circles, I thought that a minimum distance negative can give me this information.
7. ### Minimum distance between a point and a geometric locus

Hi guys I have a problem to solve, I'd like to find the minimum distance between a point and a geometric locus described in closed form, for example the intersection of two circles: p= point coordinate p1= center coordinate circle 1 p2=center coordinate circle 2 r1=radius of circle 1...