In the framework of Geoacoustics interface wave theory,a time domain finite difference model for the propagation of interface wave in shallow sea has been developed.
根据地声界面波的相关理论,采用时域有限差分法建立浅海沉积层中界面波传播模型。
Finite difference
英语例句库
中文百科
差分
![《自然哲学的数学原理》的第三编“宇宙体系”的引理五的图例。这里在横坐标上有6个点H,I,K,L,M,N，对应着6个值A,B,C,D,E,F，生成一个多项式函数对这6个点上有对应的6个值，计算任意点S对应的值R。牛顿给出了间距为单位值和任意值的两种情况。](/Images/godic/202501/13/Principia1846-4661431.png")
![Diferencias finitas.](/Images/godic/202501/13/Latex.draw.tex1431.png")
差分，又名差分函数或差分运算，是数学中的一个概念。它将原函数 ![\ f(x)](/Images/godic/202501/13/319465f11b6d57c3ba7f1783c2f1d1601431.png")
映射到 ![\ f(x+a)-f(x+b)](/Images/godic/202501/13/ce14805c408e056e1b6e5a1188d33d591432.png")
。差分运算，相应于微分运算，是微积分中重要的一个概念。
牛顿 · 莱布尼兹 · 柯西 · 黎曼
拉格朗日 · 拉普拉斯 · 欧拉
英语百科
Finite difference 差分
A finite difference is a mathematical expression of the form f(x + b) − f(x + a). If a finite difference is divided by b − a, one gets a difference quotient. The approximation of derivatives by finite differences plays a central role in finite difference methods for the numerical solution of differential equations, especially boundary value problems.
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