By using variables separation in the complex number field, the real analytical solution in the form of Fourierseries was obtained.
在复数域内利用分离变量法，得到了这类方程的级数形式的解析解，而最后的解是实数形式。
2
It is shown that the improved algorithm provides more accurate calculation results than the complex Gaussian function expansion, so long as the number of Fourierseries is no less than 30.
研究表明，只要傅里叶级数项数不少于30，改进后的算法比直接用复高斯函数展开具有更高的计算精度。
3
The series density formulae of the binary phase grating are obtained from the general complex amplitude transmittance formulae through Fourier integral.