{
// Determinant of a sparse matrix that comes up in graph theory:
symbol x1("x1"), x2("x2"), x3("x3"), x4("x4"), x5("x5");
- static ex w[26][11] = {
+ ex w[26][11] = {
{ 1, 1, 1, 7, x4, 12, x3, 17, x2, 22, x1},
{ 2, 2, 1, 8, x4, 13, x3, 18, x2, 23, x1},
{ 3, 3, 1, 9, x4, 14, x3, 19, x2, 24, x1},