This procedure is used to calculate a quadratic equation of one dollar cottage roots, very useful, and they hope to help you. 这个程序是用来计算一个一元二次方程的平房根的，非常有用，希望对你有帮助。
This paper presents a simple deduction of an inequality for heavy weighted triangles,and with it some new quadratic inequalities of three variants at any point within a triangle. 给出了大加权三角形不等式的一个简单推论，由之简捷地推导出一些新的涉及三角形内部任一点的三元二次型不等式。
