tangent vector
mathematics
Learn about this topic in these articles:
relativistic space-time
- In relativistic mechanics: Relativistic space-time
…4-acceleration correspond, respectively, to the tangent vector and the curvature vector of the world line (see Figure 2). If the particle moves slower than light, the tangent, or velocity, vector at each event on the world line points inside the light cone of that event, and the acceleration, or curvature,…
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