2. We start with the function that uses the naive formula in textbook format. ����ʹ�ý̿����Ĺ�ʽ��ʽ�������һ��������
3. The stupid neither forgive nor forget; the naive forgive and forget; the wise forgive but do not forget. �����˼Ȳ�ԭ��Ҳ�����ǣ��������ԭ�¡����Ǵ�������ԭ�£��������ǡ�
ӢӢ����
adj.
1. marked by or showing unaffected simplicity and lack of guile or worldly experience
2. of or created by one without formal training; simple or naive in style
3. inexperienced
4. lacking information or instruction
5. not initiated; deficient in relevant experience