Returns sign value of polynomial
def findSign ( poly , n , x ) : NEW_LINE INDENT result = horner ( poly , n , x ) ; NEW_LINE if ( result > 0 ) : NEW_LINE INDENT return 1 ; NEW_LINE DEDENT elif ( result < 0 ) : NEW_LINE INDENT return - 1 ; NEW_LINE DEDENT return 0 ; NEW_LINE DEDENT