In following plots, how can we measure intersect points?

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MOHD UWAIS
MOHD UWAIS 2023-2-16
回答： Kevin Holly 2023-2-16
clear all
clc
for y=0.1:0.1:0.3;
G=[];
B=[];
for a=1:1:100
z=0.3;
x=y+sind(a);
G=[G x];
b=z+0.4;
B=[B b];
end
B;
G;
a=1:1:100;
plot(a,G,'-')
hold on
plot(a,B,'-')
end

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采纳的回答

Kevin Holly
Kevin Holly 2023-2-16
Ran in:
for y=0.1:0.1:0.3
G=[];
B=[];
for a=1:1:100
z=0.3;
x=y+sind(a);
G=[G x];
b=z+0.4;
B=[B b];
end
B;
G;
a=1:1:100;
plot(a,G,'-')
hold on
plot(a,B,'-')
%spline1
s1 = spline(a,G);
%spline 2
s2=spline(a,B);
% find zeros
a0 = fzero(@(a) (ppval(s1,a)-ppval(s2,a)), 0) %Intersection point using spline interpolation
end
a0 = 36.8699
a0 = 30.0000
a0 = 23.5782

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