Returns the arccosine of a number.
Cette fonction fonctionne de la même façon dans Google Sheets que dans Excel — même syntaxe et mêmes arguments.
ACOS(number)The ACOS function calculates the angle whose cosine is the specified number. The returned angle is given in radians in the range 0 to pi.
=ACOS(0.5)Résultat : 1.047197551
Returns the arccosine of 0.5 in radians, which is pi/3.
=ACOS(-1)Résultat : 3.141592654
Returns the arccosine of -1, which is equal to pi.
Excel will return the #NUM! error because the cosine of an angle cannot be outside this range.
You can use the formula =DEGREES(ACOS(number)).