Find the divergence of the vector field. 
Definitions:
Affective
Pertaining to emotions or feelings and their expressions.
Dispositional
Referring to inherent qualities of mind and character of an individual.
Waypower
A concept in the study of motivation that combines having the will (motivation) to achieve a goal with knowing the way (having a plan) to achieve it.
Mental Willpower
The inner strength and determination that allows an individual to overcome obstacles and achieve goals through focus and discipline.
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