In space regions, points can have variable values and directions {vector field, physics}. For example, points have force and momentum. Scalar-field gradients are vector fields, because gradients have direction and magnitude. Vector fields have gradients, flows, constancies, covariances, contravariances, divergences, curls, and Laplace operators. Total effect of variable over region is vector sum. For example, force-vector sum gives total force.
Physical Sciences>Physics>Matter>Vector Field
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Date Modified: 2022.0224