The x-coordinates of the intersection points between the two graphs are? solx and soly

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Anjoud Alkathairi 2022-11-14

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1850728-the-x-coordinates-of-the-intersection-points-between-the-two-graphs-are-solx-and-soly

编辑： Matt J 2022-11-14

v =[2;0;1;9;0;1;3;0;1]; 
m = max(v); 
n = mean(v);
syms x; 
f= @(x)(3+sin(m*x)+cos(n*x)); 
ezplot(f,[-pi,pi]); 
dfx(x)= diff(f(x));  dfx(x) 
A=2*pi*int(f*sqrt(1+dfx^2),-2*pi,2*pi); 
An = double(A); 
V=pi*int((3+sin(n*x))^2,-2*pi,2*pi); 
Vn=double(V);