p(x_1)&=a_0 + a_1 x_1 + a_2 x_1^2 + \cdots a_n x_1^n = y_1\\
说了这么多，你可能会问：为什么是前端先学AI？而不是后端、不是移动端？。体育直播对此有专业解读
print u"\u001b[44;1m A \u001b[45;1m B \u001b[46;1m C \u001b[47;1m D \u001b[0m"，详情可参考同城约会
When aspiring artists approach her for advice, she adds, her first response is always to ask, "What steps have you taken?"