Function: Acos
Description
Returns the arccosine, also known as inverse cosine, value (in radians) of a given number.
Syntax
Acos(number)
Arguments
Number must be a value between => -1 and =< 1
Return value
This function returns a value in radians.
Calculated field example
Acos returns the following for these values of x:
|
x |
acos(x) |
|
-1.000 |
π ≈ 3.142 |
|
-√3/2 ≈ -0.866 |
5π/6 ≈ 2.618 |
|
-√2/2 ≈ -0.707 |
3π/4 ≈ 2.356 |
|
-1/2 ≈ -0.500 |
2π/3 ≈ 2.094 |
|
0.000 |
π/2 ≈ 1.571 |
|
1/2 = 0.500 |
π/3 ≈ 1.047 |
|
√2/2 ≈ 0.707 |
π/4 ≈ 0.785 |
|
√3/2 ≈ 0.866 |
π/6 ≈ 0.524 |
|
1.000 |
0.000 |
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