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I would like to know how can I get help on a Mathematica symbol that I don't know ? There is often this case when I read some codes from forum or collegues. Thank you for your help.

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  • $\begingroup$ Just type a question mark before the command and hit enter. Or highlight the symbol and hit F1 $\endgroup$
    – Jason B.
    Aug 26, 2015 at 8:22
  • $\begingroup$ minor correction: highlight (place the cursor on, or select, the symbol or term you're interested in) and press F1 (the function-1 key) on your keyboard. Also note that the Help documentation built into Mathematica is excellent (allows searching on symbols, too), and that it is also completely reproduced online reference.wolfram.com $\endgroup$ Aug 26, 2015 at 8:24
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    $\begingroup$ There is a general list: mathematica.stackexchange.com/a/25616/30771 $\endgroup$ Aug 26, 2015 at 8:26
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    $\begingroup$ I am sorely tempted to close this as "easily found in the documentation"… $\endgroup$ Aug 26, 2015 at 9:07
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    $\begingroup$ More seriously, there's a fantastic package here: mathematica.stackexchange.com/a/15948/26956 although I don't think, this is exactly as deep as the OP wanted to go (or rather, vice-versa). $\endgroup$
    – LLlAMnYP
    Aug 26, 2015 at 11:48

1 Answer 1

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In{1};= ?FindFit [Shift+Enter]

enter image description here

Then click the >>> at the bottom to expand the text. Placing the MMA command after the ? will give you the description and usage.

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