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Help on double integral
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I wrote a simple code for evaluating a double integral of a function of the following but it does n't work;
R = 0.0067; D = 1.1111;
f = inline('exp(-R*(y-x))*((((y+D)/(x+D)))^(R*(K+D)+1))*(1/((y+D)*y)))','x','y');
dblquad(f,0,100,100,inf)
Any with a solution? Thanks for your time
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Antworten (1)
Walter Roberson
am 5 Mär. 2012
The above cannot be integrated, as it involves the undefined variable K .
4 Kommentare
Mike Hosea
am 8 Mär. 2012
Your integral function must be able to accept arrays and return arrays. Don't use *, as this is matrix multiply. Instead use .*, elementwise multiplication. Similarly, don't use ^, rather .^. Don't use /, rather ./ . Basically, your integrand isn't working because it is being passed arrays, and it's trying to do matrix multiplications, matrix powers, and linear system solves when what you really just want is simple arithmetic, elementy-by-element.
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