Section: Mathematical Functions
y = fix(x)
where x is a numeric array.  For positive elements of x, the output
is the largest integer smaller than x.  For negative elements of x
the output is the smallest integer larger than x.  For complex x,
the operation is applied seperately to the real and imaginary parts.
fix operation on some values
--> a = [-1.8,pi,8,-pi,-0.001,2.3+0.3i]
a = 
 Columns 1 to 4
  -1.8000 +  0.0000i   3.1416 +  0.0000i   8.0000 +  0.0000i  -3.1416 +  0.0000i 
 Columns 5 to 6
  -0.0010 +  0.0000i   2.3000 +  0.3000i 
--> fix(a)
ans = 
 Columns 1 to 4
  -1.0000 +  0.0000i   3.0000 +  0.0000i   8.0000 +  0.0000i  -3.0000 +  0.0000i 
 Columns 5 to 6
        0             2.0000 +  0.0000i