ATAN
The angle (in radians) whose tangent is a number.
Syntax
ATAN(x)
| Argument | Meaning |
|---|---|
| x | A number. |
Result
An angle in radians.
Examples
In the example drawing:
| Expression | Gives |
|---|---|
ATAN(1) |
0.7854 |
RTOD(ATAN(1)) |
45 |
Notes
For degrees, use RTOD. For the angle of a direction, ATAN2 or ANGLE work all the way round.