1. Which method must exist in every Java application? (a) main (b) init (c) begin (d) paint Correct answer is (a) 2. Which of the following is a valid literal of type float in Java? (a) 10.5d (b

2.5D直流电测深，有限元变分问题，正演程序-2.5D electrical sounding, finite element variational problems, the forward program

MODE Solutions 拥有特征模式计算以及长距离光场传播的各种仿真方法，是一款设计、分析、优化波导结构的理想工具。特征模式计算引擎可以计算任意形状波导中导模的物理特性； 其2.5D varFDTD 可以快速高精度地仿真SOI楔形波导和环形谐振腔等；而特征模式展开法 eigenmode expansion (EME) solver 是仿真长传播距离波导器件，例如模斑尺寸转换器、楔形波导和布拉格光栅等器件的理想方法。-MODE Solutions has a characteristic p

Accurate bandstructure calculations are important for the design and analysis of photonic crystal devices. In this example, we will focus on how to use MODE Solutions 2.5D FDTD propagation method to calculate the bandstructure of a slab photonic crys