point of inflection
Embroidery upon cloth over which canvas has been laid to guide the stitches. / Embroidery in Berlin wool on silk canvas with plush stitch.
(mathematics) a point on a curve at which the sign of the curvature changes; at this point the second derivative of the underlying function will be zero, but positive on one side and negative on the other.
Excessive specification
plural of falcation
変曲点では、曲線の曲率が符号を変え、上に凸から下に凸への切り替えを示します。
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