jxl.m

来自「the code of the book come form the book 」· M 代码 · 共 8 行

function [x,n]=jxl(x1,x2,n1,n2)
n=min(min(n1),min(n2)):max(max(n1),max(n2));      %构造和序列的长度
s1=zeros(1,length(n));s2=s1;                         %初始化新向量
s1(find((n>=min(n1))&(n<=max(n1))==1))=x1;        %将x1中在和序列范围                                                       内但又无定义的点赋值为零
s2(find((n>=min(n2))&(n<=max(n2))==1))=x2;       %将x2中在和序列范围内但又无定义的点赋值为零
x=s1+s2;                                                %两长度相等序列求和
axis([(min(min(n1),min(n2))-1),(max(max(n1),max(n2))+1),(min(x)-0.5),(max(x)+0.5)])