syms k n Sn=symsum(1/k^2,1,n) thres=symsum(1/k^2,1,inf); tol=10^(-5); n=1; while Sn(n)<=thres-tol n=n+1; end

I'm sorry, but the code you provided has a syntax error. The line "n=n 1;" should be "n=n+1;". Additionally, the code does not output anything. Please let me know what you would like the code to do, and I can provide assistance.

相关问题

thres=symsum(1/k^2,1,inf); tol=10^(-5); Snn=@(i)(1/i^2); i=1; while Snn(i)<=thres-tol i=i+1; end [i,Snn(i)]

There is an error in the code provided. The line "i=i 1;" should be "i=i+1;" to increment the value of i.

Here is the corrected code:

syms thres;
thres = symsum(1/k^2, 1, inf);
tol = 10^(-5);
Snn = @(i) (1/i^2);
i = 1;
while Snn(i) <= thres - tol
i = i + 1;
end
[i, Snn(i)]

syms k y m x x0 y0; eqn1 = (45*x)^2+90*m*k+m^m == 16*k^2+16; eqn2 = (45^2-16)*k^2+90*m*k+m^2-16 == 0; eqn3 = k == -15^2/(40^2)*x0/y0; eqn4 = m == 15^2/y0; [solk,soly0,solm,solx0] = solve(eqn1,eqn2,eqn3,eqn4,k,y0,m,x0); disp(solk); disp(soly0); disp(solm); disp(solx0);

根据你提供的方程，使用MATLAB的符号计算工具箱可以求解。以下是求解的MATLAB代码：

syms  k y m x x0 y0;
eqn1 = (45*x)^2+90*m*k+m^m == 16*k^2+16;
eqn2 = (45^2-16)*k^2+90*m*k+m^2-16 == 0;
eqn3 = k == -15^2/(40^2)*x0/y0;
eqn4 = m == 15^2/y0;

[solk,soly0,solm,solx0] = solve(eqn1,eqn2,eqn3,eqn4,k,y0,m,x0);

disp(solk);
disp(soly0);
disp(solm);
disp(solx0);

运行这段代码后，你会得到方程的解。其中`solk`是k的解，`soly0`是y0的解，`solm`是m的解，`solx0`是x0的解。

注意，这里我使用了MATLAB的符号计算工具箱来求解方程。如果你没有这个工具箱，可以尝试使用其他数学计算软件或在线计算器来求解方程。