Help on double integral Again

Question

Natnael Hamda 2012-3-6

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/31333-help-on-double-integral-again

I tried to solve an integral problem using Matlab's built-in function dblquad as follows;

R = 0.0067; D = 1.1111; K = 100; dblquad( @(x,y) exp(-R*(y-x))*((((y+D)/(x+D)))^(R*(K+D)+1))*(1/((y+D)*y)), 0, 100, 100, inf)

but I have got the following error messages; LOOKING FOR YOUR HELP; THANK YOU;

??? Error using ==> mldivide 
Matrix dimensions must agree.
Error in ==> @(x,y)exp(-R*(y-x))*((((y+D)/(x+D)))^(R*(K+D)+1))*(1/((y+D)*y))
Error in ==> quad at 77 
y = f(x, varargin{:});
Error in ==> dblquad>innerintegral at 78 
Q(i) = quadf(intfcn, xmin, xmax, tol, trace, y(i), varargin{:});
Error in ==> quad at 77 
y = f(x, varargin{:});
Error in ==> dblquad at 54 
Q = quadf(@innerintegral, ymin, ymax, tol, trace, intfcn, ...