How does the ACOS function (DAX) work?
The ACOS function (DAX) works by returning a number’s arccosine or inverse cosine. The arccosine is the angle whose cosine is number. The angle of return is in radians that are in between the range of 0 to pi.
ACOS Formula Syntax
How do you use the ACOS function (DAX)?
If you want to change your result from radians to degrees, you can do so by multiplying it by 180/PI or by using the DEGREES function.
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Considerations when using the ACOS function
By returning the inverse of the cosine function, this function will return the angle whose cosine is a given number.
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Formula examples using the ACOS function