差分近似 meaning in English
difference approximation
Examples
- Alternating direction explicit difference approximation
交替方向显示差分近似法 - Finite difference approximate solutions for the
方程的有限差分近似解 - A stable finite difference approximation for vibration equation of beams
梁振动方程的一个稳定的有限差分近似 - Backward difference approximation
后向差分近似法 - First , we simply introduced the optical wave - guide theory : the fluctuation equations of planar wave - guide and the preparation of embranchment wave - guide . then based on maxwell equations and in the paraxial limit we deduced the formula needed in calculating fd - bpm . the refractive index section was n ( x , y )
然后我们在maxwell方程的基础上，根据慢包络近似理论，在折射率截面为n ( x ， z )的条件下，利用有限差分近似来代替偏微分方程，推出了有限差分光束传播法计算所需要的公式。