Definition:Angle of Depression

Definition

Let $A$ and $B$ be points in space such that $A$ is lower than $B$.

The angle of depression of $A$ from $B$ is the angle between the line $AB$ and the horizontal.

Also see

• Definition:Angle of Elevation

Sources

• 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): angle
• 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): depression, angle of
• 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): angle
• 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): depression, angle of