余弦三角形

love triangle───三角恋爱

warning triangle───三角警示牌

acute triangle───[数]锐角三角形

foretriangle───n.（帆船的）三角形区

golden triangle───金三角

love triangles───三角恋爱

warning triangles───三角警示牌

Now you do not need to remember the Pythagorean theorem or sine and cosine calculations. Just type in your values and the program will complete the triangle.───了两种基带IJ F脉冲信号：双码元间隔升余弦脉冲以及双码元间隔三角脉冲，并对它们的性能参数作了比较。

Tow base-band IJF pulse signal have been researched: the time-limited double-code rise cosine pulse and the time-limited double-code triangle pulse.───三角形中的余弦定律进行推广，得到一般平面封闭折线的余弦定律。