asecd

Inverse secant in degrees

Usage

asecd(A)

• A should be an array, which can be real or complex.
• It returns an array containing the inverse secant (in degrees) of each element of A.
• For real elements of A lying in $(-1,1)$, it returns complex numbers.
• The output has the same size as A.

Example

Input

• asecd(A) gives a complex number when abs(A) is less than 1.

x = linspace(-1,1,8)
asecd(x)

Output

x = 
-1.0000000  -0.7142857  -0.4285714  -0.1428571   0.1428571   0.4285714   0.7142857   1.0000000

ans = 
Columns 1 to 3:
 180.00000 + 0.0000000i   180.00000 + 49.676285i   180.00000 + 85.427796i
Columns 4 to 6:
 180.00000 + 150.91226i   0.0000000 + 150.91226i   0.0000000 + 85.427796i
Columns 7 to 8:
 0.0000000 + 49.676285i   0.0000000 + 0.0000000i