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).
Calculate area of sector
Most nonzero elements in row
Knight's Tour Checker
Find common elements in matrix rows
Find relatively common elements in matrix rows
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