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Re: sum element of columns


From: Marco Atzeri
Subject: Re: sum element of columns
Date: Tue, 16 Oct 2018 09:43:42 +0200
User-agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1

Am 16.10.2018 um 08:15 schrieb turbofib:

a =

    9   1   6
    3   6   2
    1   9   8


i want this:


newArray=9+1+6;3+6+2;1+9+8

=15 11 18


maybe it is time to lean matrix multiplication ?

a= [9 1 6 ; 3 6 2 ; 1 9 8 ]
a =

   9   1   6
   3   6   2
   1   9   8

octave:2> b = [ 1;1;1]
b =

   1
   1
   1

octave:3> a*b
ans =

   16
   11
   18


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