Customizing Maxima. Renaming Maxima functions

Richard Hennessy wrote:
> Dear List,
>
> I would like to rename some Maxima commands somehow.  By rename I literally mean rename, the old name won't work anymore
> after it is done.  e.g.  I would like to change "integrate" to "rsum" for example.  So rsum(x^2,x) will return 1/3*x^3
> and rsum(x^2,x,0,1) will return 1/3 and also all error messages would be the same as if rsum were integrate.  Can
> someone help me?  Also undoing this would be good to know too so I can change the name in a block and then change it
> back at the end of the block for example.
>
> Thanks,
>
> Rich
>
>
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>
>   
Actually, it seems that 'kill' will remove the alias

e.g.

(%i6) display2d: false;

(%o6) false
(%i7) alias(rsum,integrate);

(%o7) [rsum]
(%i8) rsum(x^2,x);

(%o8) x^3/3
(%i9) kill(rsum);

(%o9) done
(%i10) rsum(x^2,x);

(%o10) rsum(x^2,x)

-sen