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`||vecv|| = sqrt(v_x^2 + v_y^2 + v_z^2)`

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This equation computes the Vector Norm, the positive length, of a vector from the Euclidean three space x,y,z components of the vector.

- `v_x` - the x-component of the vector, `vecv`
- `v_y` - the y-component of the vector, `vecv`
- `v_z` - the z-component of the vector, `vecv`

There all kinds of vectors applied in physics for forces, positions, velocities, acceleration, etc. The position vector, often represented by `rvec` can be decomposed into its components parallel to the Euclidean three-space axes: `vecr = r_xrhati + r_yhatj + r_zhatk`

Similarly, a velocity vector could be decomposed into its Euclidean components as: `vecv = v_xrhati + v_yhatj + v_zhatk`