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cotd

cotd(x)

Compute the cotangent of x, where x is in degrees

Examples

In the Julia programming language, the function cotd(x) computes the cotangent of x where x is in degrees.

julia> cotd(45)
0.6173696237835552

1. Calculate the cotangent of an angle in degrees:

   julia> cotd(30)
   0.5773502691896257

   This example calculates the cotangent of 30 degrees.

2. Evaluate the cotangent of multiple angles:

   julia> angles = [45, 60, 90];
   julia> cotd.(angles)
   3-element Array{Float64,1}:
   1.0
   0.5773502691896257
   0.0

   It computes the cotangent of each angle in the given array.

3. Use cotd in mathematical expressions:

   julia> x = 30;
   julia> y = cotd(x) + 2 * cotd(2 * x);
   julia> y
   0.473606797749979

   It demonstrates the usage of cotd within a mathematical expression.

Common mistake example:

julia> cotd("60")
ERROR: MethodError: no method matching cotd(::String)

In this example, the function cotd is called with a string argument "60". The correct usage is to provide a numeric value representing an angle in degrees. Make sure to pass a valid numeric argument to cotd to avoid such errors.

See Also

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