Question concerning some mathematical symbols

[Bouchniba, Ali]

Hi there,

I have run through Lout user guide but I am unable 
to find out how to write the common used symbol 
in probability theory for expectation.

This symbol is basically a big E but with it's left
edge (or it's skeleton) consisting of two adjacent
bars, so it looks something like this:

        IE

There is a similar symbol widely used and that is
a big P with the same caracteristics, i.e. with
a sort of double skeleton.  

Anyone could help?

Thanks muchly


Ali.


ps: I am using {teq} fonts.


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