what's the "str2num" mean?
str2num means "convert string to number"; even more cryptic is the fact that "str2num 1:10" is equivalent to "str2num('1:10')" (Matlab allows you to omit the single quotes and parentheses when using functions that take character strings as arguments).
Find the sum of all the numbers of the input vector
Right and wrong
Number of Horns on a unicorn!
Matlab Basics - Convert a row vector to a column vector
Return the largest number that is adjacent to a zero
Summing Digits within Text
Return a list sorted by number of occurrences
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