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tanh

tanh(x)

Compute hyperbolic tangent of x

Examples

1. Compute hyperbolic tangent of a number:

   julia> tanh(0.5)
   0.4621171572600098

   This example calculates the hyperbolic tangent of the number 0.5.

2. Calculate hyperbolic tangent of an array:

   julia> arr = [1.0, 2.0, 3.0];
   julia> tanh.(arr)
   3-element Array{Float64,1}:
   0.7615941559557649
   0.9640275800758169
   0.9950547536867305

   The tanh. notation applies the tanh function element-wise to the array arr.

3. Compute hyperbolic tangent of a matrix:

   julia> matrix = [1.0 2.0; 3.0 4.0];
   julia> tanh.(matrix)
   2×2 Array{Float64,2}:
   0.761594  0.964028
   0.995055  0.999329

   Using the tanh. notation, we can calculate the hyperbolic tangent of each element in the matrix.

Common mistake example:

julia> tanh("[1, 2, 3]")
ERROR: MethodError: no method matching tanh(::String)

In this example, the tanh function is called with a string as an argument. The tanh function operates on numeric types, so passing a string will result in a MethodError. Make sure to provide valid numeric inputs to the tanh function.

See Also

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