a = 1 1 1 1 1 1 -1 -1 1 -1 1 -1 1 -1 -1 1; PSC = 1 +1i a; a; a; -a; -a; a; -a; -a; a; a; a; -a; a; -a; a; a;

The variable a is a list containing the values [1, 1, 1, 1, 1, 1, -1, -1, 1, -1, 1, -1, 1, -1, -1, 1].

The variable PSC is calculated by multiplying the complex number (1 + 1i) with the matrix formed by repeating a multiple times and changing the signs according to a specific pattern. Specifically, the matrix is formed as follows:

• The first row of PSC is the same as a.
• The second row of PSC is the same as a.
• The third row of PSC is the same as a.
• The fourth row of PSC is the negation of a.
• The fifth row of PSC is the negation of a.
• The sixth row of PSC is the same as a.
• The seventh row of PSC is the negation of a.
• The eighth row of PSC is the negation of a.
• The ninth row of PSC is the same as a.
• The tenth row of PSC is the same as a.
• The eleventh row of PSC is the same as a.
• The twelfth row of PSC is the negation of a.
• The thirteenth row of PSC is the same as a.
• The fourteenth row of PSC is the negation of a.
• The fifteenth row of PSC is the same as a.
• The sixteenth row of PSC is the same as a.

So PSC is a 16x16 matrix where each element is a complex number formed by multiplying the corresponding element in a with (1 + 1i).