"Christoph Hormann" <chr### [at] gmxde> wrote in message
news:3D2EE830.251D38FD@gmx.de...

> Apart from that i would also suggest a good math book with emphasis on
> geometry.  This is especially important if you did not have much
> mathematics at school or this already has been some time ago.

Why didn't you just put on a big scary mask and jump out at Chen from behind a
bush or something? ;)

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