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).
Indexed Probability Table
Change the sign of even index entries of the reversed vector
Add offset to a signal
Predicting life and death of a memory-less light bulb
Calculate the Levenshtein distance between two strings
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