SlimeVR Full-Body Tracker
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Computer text line lengths affect reading and learning
Peter Orton
https://cdn.tc-library.org/Edlab/eye-tracking%20article.pdf
Observability is a structural property of a control system dened as the possibility to deduce the state of the system from observing its input-output behaviour
Identiability is the possibility to identify the parameters of a control system from its input-output behaviour.
Parameter identiability is a special case of the observability problem.