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ASECD Inverse Secant Degrees Function

Section: Mathematical Functions

# Usage

Computes the inverse secant of the argument, but returns the argument in degrees instead of radians (as is the case for `asec`. The syntax for its use is

       y = asecd(x)

# Examples

The inverse secant of `2/sqrt(2)` should be 45 degrees:

    --> asecd(2/sqrt(2))

    ans =
      45.0000 +  0.0000i

and the inverse secant of `2` should be 60 degrees:

    --> asecd(2)

    ans =
      60.0000 +  0.0000i