Definition:Directed Angle/Mistake

Source Work

1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.)

2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.):

angle

Mistake

Often an angle is regarded as the measure of the rotation involved in moving from one initial axis to another final axis (termed a direction angle).

Correction

The term direction angle is given a significantly different definition in the entry direction angles, which is confirmed by multiple other sources.

It can be presumed that David Nelson meant to say directed angle.

Sources

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