Do not worry about your difficulties in mathematics, I assure you that mine are greater.
I am doing a startup!
Cross-browser testing from your browser!
I have written my fourth book!
Be faster than Larry Wall in the shell!
You're replying to a comment by _Mark_.
Aww, I was disappointed by the power set example. You see, back in the mid 1990's, when we were implementing gcc multilib support (this is the idea that if the user gives gcc flags that lead to incompatible ABIs, you need to supply corresponding libgcc and possibly libc/libm that match...) at Cygnus (mostly for embedded work) I had to implement power set in sh (after all, the user could combine the incompatible options) - and not even full POSIX sh, but a subset that pre-autoconf configure scripts were allowed to use (so that they actually worked on things like LynxOS.)
I mostly remember it being unpleasant, and hoped I'd find something more modern and elegant here :-)
(Eventually Ian Taylor rewrote all that, and I don't know what the current gcc-multilib packaging does - avoiding the problem and specifying the desired combinations explicitly would not have been wrong...)
(why do I need your e-mail?)
It would be nice if you left your e-mail address. Sometimes I want to send a private message, or just thank for the great comment. Having your e-mail really helps.
I will never ever spam you.
(Your twitter handle, if you have one.)
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