i think the question may be worded incorrectly. there is no adding
Exact . Thanks for the remark , I replaced the "add" word by "remove"
Problem name “Remove the two elements next to NaN value” is confusing. In a 1d array the first and last element have 1 element next to them while other elements have 2 elements next to them. The name would imply that we are to remove one element preceding and one element following a NaN however in the problem description we are told to remove the two elements following the NaN. I would argue that the element preceding the NaN is more “next to” the NaN than the element two elements away. Name should be changed to “Remove the two elements following a NaN value”.
The term "next to NaN" would generally be considered as the one right before and the one right after NaN, if existing. Also the problem failed to say that NaN themselves need to be removed.
JF & LD, I agree with both of your comments. Furthermore, it is unfortunate that in the example the first NaN has digit "9" both immediately preceding it and two elements after it, making the procedure to get the result in that neighbourhood ambiguous.
not so easy problem. Took a lot of time for thinking!
Back and Forth Rows
Swap the input arguments
Back to basics 25 - Valid variable names
Return the first and last characters of a character array
Create a vector whose elements depend on the previous element
Angle between two vectors
Sophie Germain prime
Set some matrix elements to zero
Cody Computer Part 5 - Guess the Name of Cody Computer
Assign numerical values to a structure with 1 field
Find the treasures in MATLAB Central and discover how the community can help you!
Choose a web site to get translated content where available and see local events and offers. Based on your location, we recommend that you select: .
You can also select a web site from the following list:
Select the China site (in Chinese or English) for best site performance. Other MathWorks country sites are not optimized for visits from your location.
Contact your local office