percentage 0.0.0b4

open source and free to use!!<br> if you have question,feel free to email seojin04230423@gmail.com !<br> Changelogs:<br> 0.0.0b1 first release(changed from percstat)<br> 0.0.0b3 debug and added AmB function<br> 0.0.0b4 import error fixed<br> how to use:<br> 1.Class etc:<br> coin=[0,1]<br> dice=[1,2,3,4,5,6]<br> 2.Class percentage:<br> 2-1.functions that returns integer:<br> Factorial(n)=n*(n-1)*…*2*1<br> nPr(n,r)=n!/(n-r)!(! is factorial)<br> nPIr(n,r)=n**r((ex)nPIr(3,2)=3**2= 3*3,nPIr(4,4)=4**4=4*4*4*4<br> nHr(n,r)=n+r-1Cr(=nCr(n+r-1,r))<br> nCr(n,r)=nPr(=nPr(n,r))/n!<br> P(A,S)=len(A)/len(S)(if A is in S,if not, returns 0)(A and S are NON-TUPLE list)<br> P_BlA(A,B,S)=returns P(AnB(A,B)/P(A))<br> 2-2.functions that returns NON-TUPLE list:<br> Ac(A,S)=returns all of S’s elements except A’s elements.<br> AnB(A,B)=returns (A and B)’s elements.<br> AUB(A,B)=returns (A or B’)s elements.<br> AmB(A,B,S)=returns AnB(A,Ac(B,S))’s elements.<br> 2-3.Functions that returns boolean(True/False)<br> AcB(A,B)=returns true if list A is in B<br> AEB(A,B)=returns true if element A(only one elements!) is in B<br>