bool(false)
Notice: Use of undefined constant INF - assumed 'INF' in /in/S4PEM on line 4
bool(false)
Notice: Use of undefined constant NAN - assumed 'NAN' in /in/S4PEM on line 5
bool(false)
Notice: Use of undefined constant INF - assumed 'INF' in /in/S4PEM on line 6
bool(true)
bool(true)
bool(false)