acos

acos(x)

Compute the inverse cosine of x, where the output is in radians

Examples

julia> acos(0.5)
1.0471975511965979

Computes the inverse cosine of 0.5.

julia> acos(1)
0.0

Computes the inverse cosine of 1.

julia> acos(-1)
3.141592653589793

Computes the inverse cosine of -1.

julia> acos(2)
DomainError with acos: input -2.0 is out of the range [-1, 1]

Raises a DomainError for input 2 since it is out of the valid range [-1, 1].

julia> acos("hello")
MethodError: no method matching acos(::String)

Raises a MethodError since the input is of type String, and acos is not defined for strings. Ensure the input is of type Number when using acos.

See Also

acos, acosd, acosh, acot, acotd, acoth, acsc, acscd, acsch, asec, asecd, asech, asin, asind, asinh, atan, atan2, atand, atanh, cos, cosc, cosd, cosh, cospi, cot, cotd, coth, csc, cscd, csch, deg2rad, rad2deg, sin, sinc, sind, sinh, sinpi, tan, tand, tanh,

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