Definition:Slope/Also known as
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Slope: Also known as
The slope of a straight line or curve is also sometimes referred to as its gradient.
However, that term has a more generic and abstract meaning than does the concept of slope as given here.
The word grade can sometimes be seen, but this is discouraged as it has a number of meanings.
Some sources suggest that the slope of a straight line is the same as its direction, but this is true only in the plane.
Sources
- 1933: D.M.Y. Sommerville: Analytical Conics (3rd ed.) ... (previous) ... (next): Chapter $\text {II}$. The Straight Line: $9$. Parallel lines. Points at infinity
- 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): grade: 2.
- 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): grade: 2.