Problem 2010. Wrap a vector, but insert NaN's at the wrap-positions.
a couple of issues: 1) I believe you are missing the input 'm' to wrapnan in your testsuite; 2) some numerical precision issues arise in the last test (e.g. rem(.8,.5)-.3 returns ~.5e-17), perhaps you could just round to two decimals the output of wrapnan so that we do not have to?
I fixed it. Thank you for reminding me. You might submit a shorter solution now.
I am still determining what's happening in the third case. A NaN is inserted before 1.40 but not before 1.50, which is a multiple of 0.50? The difference between 1.80 and 1.40 is 0.4, not 0.5 either...so what's going on? Every time we crossed a multiple of a factor m going up or down, a NaN should have been inserted. Imho, the problem is unclear about what should be done or the 3rd test is wrong. Maybe a sketch would help.
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