例句與造句

1. The velocity vector is the unit tangent vector.
2. The unit tangent vector taken as a curve traces the spherical image of the original curve.
3. is called the unit tangent vector, so an equivalent definition is that the tangential angle at is the angle such that is the unit tangent vector at.
4. is called the unit tangent vector, so an equivalent definition is that the tangential angle at is the angle such that is the unit tangent vector at.
5. The unit tangent vector determines the "'orientation "'of the curve, or the forward direction, corresponding to the increasing values of the parameter.
6. It's difficult to find unit tangent vector in a sentence. 用unit tangent vector造句挺難的
7. If the Ricci curvature function is constant on the set of unit tangent vectors " ? ", the Riemannian manifold is said to have constant Ricci curvature, or to be an Einstein manifold.
8. For a polymer of length l, parametrize the path of the polymer as s \ in ( 0, l ), allow \ hat t ( s ) to be the unit tangent vector to the chain at s, and \ vec r ( s ) to be the position vector along the chain.
9. The total curvature of a closed curve is always an integer multiple of 2?, called the "'index "'of the curve, or "'turning number "' it is the winding number of the unit tangent vector about the origin, or equivalently the degree of the map to the unit circle assigning to each point of the curve, the unit velocity vector at that point.