Do rounding towards plus infinity.
Example: -8.8, answer -8
+8.1 answer 9
+8.50 answer 9
Remove the two elements next to NaN value
Make a run-length companion vector
Find a Pythagorean triple
Sum of series I
Convert decimal to hex as shown in test cases
Determine the mean of matrix
Find out total non zero element of matrix
Find out Harmonic mean.
MATLAB Basic: rounding III
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