🚀 go-pugleaf

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In article <62C507.93Mar10185755@aqua1c.oscar.info.waseda.ac.jp> 62c507@oscar.info.waseda.ac.jp ("Nakano Keiichi") writes:
 |$B<ALd$O!"#29`J,I[$N<0$NHyJ,$N;EJ}!"$G(B$B$9!#(B
 |
 |$B#29`J,I[!"(B
 |  f(x) = b(x, n, P) = C(n, x) $B!_(B P^(x) $B!_(B (1-P)^(n-x)
 |    where, C(n, x) = n! / (n-x)! / x!
 |
 |$B$N7A>u$rD4$Y$k$?$a$K!"(Bd{f(x)} / dx$B$r7W;;$7$?$$$N$G$9!#(B

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