Vectors and Trajectories - a little history

Summary


  • set of “real numbers” = 1D line (geometric picture)

  • pairs of real numbers \( \mathbb{R}^2 = \mathbb{R} \times \mathbb{R} \) or \( \mathbb{R}2 \)
    • Descartes’ idea: pairs of numbers = points in the 2D plane.

  • Same for \( \mathbb{R}^n\).

  • Riemann
    • concept of “generalized space” (for example, Shark-Tuna space)