Σi=02 Σj=01(exp(xi+xj)), i>j if (i>0 and j>0) I want to write this summation
which has a condition on numerator(j<i)i>0 and j>0I tried on this code
sum(sapply(0:2, function(i){sum(sapply(0:1, function(j){if
(i>0&j>0){i>j}{exp(x[i]+x[j])}))}))But it didn't work Any help please
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