The ACOS function returns the inverse cosine of a value in radians.
Sample Usage
ACOS(0)
ACOS(A2)
ACOS(1)
Syntax
ACOS(value)
value
- The value for which to calculate the inverse cosine. Must be between-1
and1
, inclusive.
Notes
-
Use the
DEGREES
function to convert the result ofACOS
into degrees. -
Cosine is periodic, therefore there are many solutions to the inverse.
ACOS
returns the solution between 0 and Pi.
See Also
TANH
: The TANH function returns the hyperbolic tangent of any real number.
TAN
: The TAN function returns the tangent of an angle provided in radians.
SINH
: The SINH function returns the hyperbolic sine of any real number.
SIN
: The SIN function returns the sine of an angle provided in radians.
RADIANS
: The RADIANS function converts an angle value in degrees to radians.
PI
: The PI function returns the value of pi to 9 decimal places.
DEGREES
: The DEGREES function converts an angle value in radians to degrees.
COSH
: The COSH function returns the hyperbolic cosine of any real number.
COS
: The COS function returns the cosine of an angle provided in radians.
ATANH
: The ATANH function returns the inverse hyperbolic tangent of a number.
ATAN2
: The ATAN2 function returns the angle between the x-axis and a line segment from the origin (0,0) to the specified coordinate pair (`x`,`y`), in radians.
ATAN
: The ATAN function returns the inverse tangent of a value in radians.
ASINH
: The ASINH function returns the inverse hyperbolic sine of a number.
ASIN
: The ASIN function returns the inverse sine of a value in radians.
ACOSH
: The ACOSH function returns the inverse hyperbolic cosine of a number.