df1dim.m

来自「matlab仿真实现无线传感器网络定位算法」· M 代码 · 共 10 行

function [df1] = df1dim(x)   
% Must accompany dlinmin.

% Defined in dlinmin.
global pcom
global xicom;
global nrdfun;

df  = feval(nrdfun, pcom + x.*xicom);
df1 = sum(df.*xicom);