Numerical differentiation: Consider a smooth function f(r). The central difference approxima- tion to the first derivative for small h> 0 is Def(1) = _ƒ (z + h) − f (x − h) 2h while f'(x) = Def(x) + Ch² for some constant C that depends on f". Discarding the error term we have f'(2) Def(x). Similarly we define the forward difference approximation to the first derivative for small h as Dif(2)= and the backward difference approximation 1. f(z)-f(z-h) Dof(2)= with truncation error of O(h). There is a general numerical procedure to determine the order of accuracy of the approximation (i.e. the exponent p in the error formula ChP): We consider a problem with known solution. In our case we consider a given function f(r) and values h = h₁, h₂, h with hi+1
Numerical differentiation: Consider a smooth function f(r). The central difference approxima- tion to the first derivative for small h> 0 is Def(1) = _ƒ (z + h) − f (x − h) 2h while f'(x) = Def(x) + Ch² for some constant C that depends on f". Discarding the error term we have f'(2) Def(x). Similarly we define the forward difference approximation to the first derivative for small h as Dif(2)= and the backward difference approximation 1. f(z)-f(z-h) Dof(2)= with truncation error of O(h). There is a general numerical procedure to determine the order of accuracy of the approximation (i.e. the exponent p in the error formula ChP): We consider a problem with known solution. In our case we consider a given function f(r) and values h = h₁, h₂, h with hi+1
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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