gradient vs slope

兩者意思差不多，但比較上gradient傾向是形容one-dimensional物體例如圖表中曲線的斜率，slope傾向是形容two or three-dimensional物體例如平面或實物的斜率
gradient
- A rate of inclination; a slope.
- Mathematics. A vector having coordinate components that are the partial derivatives of a function with respect to its variables.
slope
- An inclined line, surface, plane, position, or direction.
- Mathematics. 1. The rate at which an ordinate of a point of a line on a coordinate plane changes with respect to a change in the abscissa. 2. The tangent of the angle of inclination of a line, or the slope of the tangent line for a curve or surface.
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