Overview
Grammar | ACOS(number) | Returns the arcsine, or inverse sine, of a number. The arcsine value is an angle, and the returned angle is given in radians. |
Parameter | number | The sine of the angle you want. |
Notes
The function supports only one number and returns illegal if more than one numbers are set.
The parameter must be between -1 and 1 (inclusive). The returned angle is between -pi/2 to pi/2 (inclusive). To express the returned angle in degrees, multiply the result by 180/PI().
Example
| Formula | Result | Notes |
|---|---|---|
| ASIN(0.5) | 0.523598776 (pi/6 radian) | |
| ASIN(1) | 1.570796327 (pi/2 radian) | |
| ASIN(0.5)*180/PI() | 30 (degrees) |
