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What are the difference between the ‘help’ and the ‘look for’ command?

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What are the difference between the ‘help’ and the ‘look for’ command?

(a) No difference

(b) Syntactical difference

(c) Help returns the entire set while look for returns specific commands

(d) Help returns all the toolbox while look for returns a single toolbox

This question was posed to me in exam.

My question is taken from The MATLAB Interface in portion Interacting with MATLAB of MATLAB

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The correct option is (c) Help returns the entire set while look for returns specific commands

The best I can explain: The ‘help’ command is used to return all the commands surrounding a particular toolbox name entered along with it. The ‘look for’ command is used to return a particular function or set of functions whose name matches with the keyword entered in along with the ‘look for’ command.

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