New posts in Coordinate Systems

Why are coordinates and velocities sufficient to completely determine the state and determine the subsequent motion of a mechanical system?

Why is light described by a null geodesic?

Metric tensor of coordinate transformation

Why does cancellation of dots $\frac{\partial \dot{\mathbf{r}}_i}{\partial \dot{q}_j} = \frac{\partial \mathbf{r}_i}{\partial q_j}$ work?

Interval preserving transformations are linear in special relativity

Confusion with vector spaces

All real numbers $(p,q)$ such that $|\sqrt{1-x^{2}}-p x-q| \leq \frac{\sqrt{2}-1}{2}$ holds for every $x \in[0,1]$

Defining manifold coordinates without an embedding

Angle between the curves without differentiation

Understanding the definitions of vector and scalar