cos(x)中文什么意思

曲线

• cos:    n. 【植物；植物学】科斯(岛产的) ...
• x:    vt. (x-ed, x'd x-i ...
• cos cos:    氧硫化碳；碳酰硫

例句与用法

1. The main results achieved in this thesis can be summarized as follows : 1 . by means of the fourier series expansion , an approximate analytical propagation equation of flattened gaussian beams ( fgbs ) passing through an apertured paraxial abcd optical system is derived , and illustrated with numerical examples , when the transmissivity of the aperture is t ( x ) = cos ( x )
   用傅立叶级数展开法研究了平顶高斯光束通过有光阑限制的近轴abcd光学系统的传输特性，导出了光阑透射率为t ( x ) = cos ( x )时的近似解析传输公式，硬边光阑的情况可作为= 0的特例得到。