loooong number

[Ray Andrews <rayandrews@xxxxxxxxxxx>]

Gentlemen:

I don't think zsh can do this but she does amaze very often so I'll ask:

My sister is memorizing Euler's number, she's at 200 digits and 
climbing.  She wants me to print it off in blocks of four digits. I 
can't find exactly that format online.  Now, the formula for the number 
is easy but the output of course is going to be a floating point number 
of 200 and counting digits which of course zsh can't handle.  But it 
occurred to me that if the digits could be computed one at a time (as we 
can do for pi), then the output could be treated as a simple string to 
which digits are added indefinitely.  I guess this is really a 
mathematical question, strictly speaking, but somebody might know.