L l0v3_y1n9 Unregistered / Unconfirmed GUEST, unregistred user! 2008-12-20 #1 a^21次方得到b,那么b如何得到a? 编程实现,谢谢!
C creation-zy Unregistered / Unconfirmed GUEST, unregistred user! 2008-12-20 #3 Ues Math; B:=Power(A,21); => A:=Power(B,1/21);