以五角形波导为例，比较了常数边界元法和线性边界元法两者各自的优势。
Taking the pentagon waveguide for example, LBEM has been compared with CBEM to obtain the advantage and difference.
线性边界元法（LBEM）是在常数边界元法（CBEM）的基础上，从线性插值函数出发将边界单元按线性分布来进行处理的一种数值方法。
The linear boundary element method (LBEM) is based on the constant boundary element method (CBEM), it makes boundary element into linear segment from linear interpolating function.
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