Excel Functions

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HI.

I want to know if any one can help me with an excel formula?
How to calculate the Arctan of an arc devided by a sqrt.
ARC-1(Arc(30)/SQRT2
I also noted that the windows calculator can not do this function.
 
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I am definitely not a mathematician and may not know what I'm talking about when it comes to this function but are you missing a close parentheses for the Arc function?
 
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Becky

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Welcome to the forum :)

The formula you're looking for is ATAN I think, it gives the arctangent of a number in radians. Been a while since I've had to use it though! @smithb2 is also correct that you're missing a few parentheses too.
 

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