您要查找的是不是：
- Similar Point : Given two circles, construction their outer and inner tangent lines.Then the outer similar point P is the intersection of outer common tangents of two circles. 相似点：给定两圆，作两圆之外公切线及内公切线，则两外公切线的交点P为"外相似点"；
- Monge Theorem : Given three circles, and construct common tangents of two circles mutually. Then three points lies in a straight line. 蒙日定理：给定三圆，则两两圆的外公切线交点在同一直线上(蒙日直线)。
- common tangent of two circles 二圆公切线
- Calculates the inverse hyperbolic tangent of two. 结构的反双曲正切值。
- The talisman consists of two circles with triangles drawn on them. 这种护身符由两个圆圈组成，圆圈上画有三角。
- internal tangent of two circles 二圆的内切线
- Graphic Method of the Intersections and Common Tangents of Two Conics 两二次曲线公有元素的图解方法
- Here a new interfluent stable power supply was proposed, which consists of two circles of magnetic flux transformer and the automatic control system. 给出一种新型交流稳压电源，由双磁路变压器和自动控制系统组成。
- There is a small overlap between the two circles. 在这两个圆周有一小部分重叠。
- Construct an animation of two mutually perpendicular tangents of the deltoid. 建构一动态绘图：展示三角线的两互相垂直的切线。
- Tan() returns the tangent of the arg parameter. tan()返回参数arg的正切值。
- Atan2 -- Arc tangent of two variables atan2--两个参数的反正切
- Returns the tangent of a number. 返回一个数的正切。
- It was all of two miles to the beach. 离沙滩足足有两英里。
- Value containing the tangent of an angle. 值,此值包含角度的正切。
- A byte composed of two binary elements. 一种由两个二进制位组成的字节。同two－bitbyte。
- They decided to effect a junction of two armies. 他们决定两军会师。
- The reciprocal of the tangent of an angle in a right triangle. 余切直角三角形中角的正切的倒数
- An accident happened at the meeting of two roads. 在两条道路的交叉点发生了一起事故。
- The tangent of the complement of a directed angle or arc. 余切有方向角或弧的补角的正切
