Command completion in maxima, xmaxima or wxmaxima ?

Hello,

is maxima/xmaxima/wxmaxima capable of command completion ?

* In maxima, if I type "dif" and [tab], maxima reacts and writes "DIFF " on the command line. This is useful to get the name of the desired command. However, it is written in uppercase and there is a space after it, so I need to rewrite it in lower case and remove the space. Strange.

* In xmaxima, typing [tab]?simply moves the cursor a few spaces to the right. No command completion.

* In wxmaxima, it's the same as for xmaxima.

Could someone tell if there is command completion in these three programs and if there is, how to use it ?

Best regards,

-- 
O.C.
System : Debian testing
Packages : maxima, xmaxima, wxmaxima

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