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Diego M. Oviedo-Salcedo
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Hello, I have used the buit-in symbol ExpIntegralEi and no problem, but when I used the following, I am getting an error message. Does anyone know how to solve this issue? LogLogPlot[ NIntegrate[Exp[-i]/(i), {i, 1/u, \[Infinity]}], {u, 0.1,...
Say, A, B and C are normally distributed random variables. They are correlated. How can I create random realizations for each variable such that the vectors show the given correlation?
I am not trying to answer the original question, instead I have an additional one: in the demonstration linked on the orginal Jonh´s post we can see the intersection of the surface with either planes parallel to  x-z and planes parallel to y-z. I am...