互联网档案馆的存檔,存档日期2010-10-30. Bi Community Celebrates. Bay Windows; 9/25/2003, Vol. 21 Issue 41, p3-3, 1/4p Scene Around Town. Bay Windows; 9/28/2000, pN.PAG, 00p BiSexuality
平方和: a 2 + b 2 = ( a + b i ) ( a − b i ) {\displaystyle a^{2}+b^{2}=(a+bi)(a-bi)\,\!} 平方差: a 2 − b 2 = ( a + b ) ( a − b ) {\displaystyle a^{2}-b^{2}=(a+b)(a-b)\