Re: simple cipher
- To: mathgroup at smc.vnet.net
- Subject: [mg55383] Re: [mg55364] simple cipher
- From: "David Park" <djmp at earthlink.net>
- Date: Mon, 21 Mar 2005 03:01:49 -0500 (EST)
- Sender: owner-wri-mathgroup at wolfram.com
Zak,
When combining two objects of equal length I always think the Inner command.
s1 = {1, 0, 1, 0, 0, 1, 0, 1};
s2 = {L, r, o, w, e, v, y, e};
Inner[If[#1 == 1, ToString[#2],
Unevaluated[Sequence[]]] &, s1, s2, StringJoin]
Love
David Park
djmp at earthlink.net
http://home.earthlink.net/~djmp/
From: zak [mailto:chocolatez at gmail.com]
To: mathgroup at smc.vnet.net
s1 = {1, 0, 1, 0, 0, 1, 0, 1}
s2 = {L, r, o, w, e, v, y, e}
s1 is a kind of a sieve i want to look through to s2, so i could pick
every letter in s2 wich correspond to every digit=1 in s1 so i could
obtain the word "love", this is like the trivial ciphers we know in
our childhood, i have the following approach, i hope there is other
versions.
p = Flatten[Position[s1, 1]]
out[]= {1, 3, 6, 8}
str = "";
Do[str = StringJoin[str, ToString[s2[[p[[i]]]]]], {i, 1, 4}]
str
Out[]= Love
thanks
zak