Re: FromDigits[{135,21}] -> 1371 (??!!)
- To: mathgroup at smc.vnet.net
- Subject: [mg53755] Re: FromDigits[{135,21}] -> 1371 (??!!)
- From: "Michael Hartl" <mhartl at post.harvard.edu>
- Date: Wed, 26 Jan 2005 04:36:54 -0500 (EST)
- References: <ct561v$e8b$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
FromDigits assumes that its argument is to be converted using base 10,
so FromDigits[{135, 21}] == 135 * 10^1 + 21 * 10^0 == 1371. To
concatenate the numbers in a list, join them as strings and then
convert back:
In[1]:= ToExpression[StringJoin[ToString /@ {135, 21}]]
Out[1]= 13521
Michael
P.S. Google groups suppresses your full email address, so I couldn't
copy you there.