Create a unit vector from two locations?

Question

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"A temporary second unit vector (j), was created from the second metatarsal head (MTH2) and CoM location, and divided by its norm."

Code:

MTH2 = [0.472 1.364 0.06]

CoM = [0.471 1.147 0.903]

UnitVector = CoM - MTH2 / norm(CoM - MTH2)

= [-0.069 0.42 0.83]

is this correct?

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Answer 1

Torsten 2022-9-26

编辑：Torsten 2022-9-26

0 个投票

is this correct?

No.

MTH2 = [0.472 1.364 0.06]
CoM = [0.471 1.147 0.903]
UnitVector = (CoM - MTH2) / norm(CoM - MTH2) 

Answer 2

David Hill 2022-9-26

0 个投票

MTH2 = [0.472 1.364 0.06];
CoM = [0.471 1.147 0.903];
UnitVector = (CoM - MTH2) / norm(CoM - MTH2) 
UnitVector = 1×3
   -0.0011   -0.2493    0.9684