4: Space Curves Flashcards
1
Q
K(s) measures the rate at which alpha(s) is bending away from its ___ straight line
A
tangent
2
Q
torsion measures the rate at which alpha(s) is twisting say from its ___
A
osculating plane
3
Q
if alpha is regular and K(u)=/=0 and ___ stays within an affine plane then torsion(u)=0
A
tracea
4
Q
Fundamental local theorem of space curves: K(s)>0, smooth unit speed space curve alpha. alpha is unique up to orientation preserving ___
A
isometries