Question

What is signed curvature?
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Answer 1

Answer:

The sign curvature of a curve parametrized by its arc length is the rate of change of direction of the tangent vector. the absolute value of the curvature is the measure of how sharply the curve bends

Answer 2

Answer:

the signed curvature of a curve parametrize by its arc length is the rate of change of direction of the tanget vector. the absolute value of curvature is measure of how sharply the curved bends