Problem 179. MonteCarlo integration
Solution Stats
Problem Comments

5 Comments
I'm confused by the 3rd test case. Can the integral inside an ndimensional hypercube really be greater than 1?
In my comment, I mean an ndimensional UNIT hypercube, which is what you integration limits impose.
Of course. It depends on the integrand. Even in 1d, if the integrand is e.g. 10x, the result will be 5.
I was confused. Thanks for clarifying.
I found it helpful to think about the problem as involving d+1 dimensions: the d dimensions of the input variables, and one more dimension for the (scalar) output variable. —DIV
Solution Comments

1 Comment
Hi sir, could u share ur solution with me cause I attempt nearly 50 times and still ain't got to complate. I don't know where is the problem and it's frustrating.

3 Comments
Innovative, but a bit risky/lucky: roughly a 20–30% risk of failing the Test Suite, by my estimation [see Solutions 1572717–1572721, and Solution 1572713; cf. Solution 1572418].
Since the MonteCarlo errors decrease proportionally to 1/sqrt(N), where N is the number of random numbers, you should always be able to choose a large enough N to nearly always pass the tests. This is only limited by the executiontime limit that cody enforces.
I agree that it is possible to choose N in such a way as to be practically guaranteed to pass the Test Suite. My point is that in this submission (and BTW also in Solution 188645) N has been chosen smaller than that, and so some luck was needed for this submission to pass — there was a significant risk that it could have failed.

2 Comments
just found this "cheat". don't hate! I've reported it to TMW
I adjusted the test suite, thanks for the hint...
Problem Recent Solvers45
Suggested Problems

Renaming a field in a structure array
1055 Solvers

Given an unsigned integer x, find the largest y by rearranging the bits in x
1235 Solvers

106 Solvers

248 Solvers

Convert given decimal number to binary number.
1330 Solvers
More from this Author7
Problem Tags
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!