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Calculate arc cosine of a value in R programming – acos() function

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  • Last Updated : 10 May, 2020

The acos() is an inbuilt function in R Programming which is used to calculate arc cosine of the specified radian value and output is also in radians.

Syntax: acos(radian)
Return: Returns the arc cosine value of radian.

Example 1:

# Using acos() method
gfg <- acos(pi/4)


[1] 0.7853982

Example 2:

# Using acos() method
gfg <- acos(pi/6)


[1] 1.019727
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