--- a/scripts/polynomial/residue.m
+++ b/scripts/polynomial/residue.m
@@ -302,14 +302,14 @@
 %! b = [1, 1, 1];
 %! a = [1, -5, 8, -4];
 %! [r, p, k, e] = residue (b, a);
-%! assert ((abs (r - [-2; 7; 3]) < 1e-5
-%! && abs (p - [2; 2; 1]) < 1e-7
-%! && isempty (k)
-%! && e == [1; 2; 1]));
+%! assert (abs (r - [-2; 7; 3]) < 1e-5
+%!   && abs (p - [2; 2; 1]) < 1e-7
+%!   && isempty (k)
+%!   && e == [1; 2; 1]);
 %! k = [1 0];
 %! [b, a] = residue (r, p, k);
 %! assert ((abs (b - [1, -5, 9, -3, 1]) < 1e-12
-%! && abs (a - [1, -5, 8, -4]) < 1e-12));
+%!   && abs (a - [1, -5, 8, -4]) < 1e-12));
 
 %!test
 %! b = [1, 0, 1];
@@ -318,11 +318,9 @@
 %! r1 = [-5i; 12; +5i; 12]/54;
 %! r2 = conj(r1);
 %! p1 = [+3i; +3i; -3i; -3i];
-%! p2 = conj(p1);
-%! assert ((((abs (r - r1) < 1e-7) && (abs (p - p1) < 1e-7))
-%! ||       ((abs (r - r2) < 1e-7) && (abs (p - p2) < 1e-7)))
-%! && isempty (k)
-%! && (e == [1; 2; 1; 2]));
+%! assert (abs (r - r1) < 1e-7 && abs (p - p1) < 1e-7
+%!   && isempty (k)
+%!   && e == [1; 2; 1; 2]);
 %! [br, ar] = residue (r, p, k);
 %! assert ((abs (br - b) < 1e-12
-%! && abs (ar - a) < 1e-12));
+%!   && abs (ar - a) < 1e-12));