Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!sdd.hp.com!hplabs!hpcc05!hpdmd48!rrr
From: rrr@hpdmd48.boi.hp.com (Rudi Rynders)
Newsgroups: comp.lang.apl
Subject: Re: Do I really need a loop?
Message-ID: <15160016@hpdmd48.boi.hp.com>
Date: 9 May 91 13:57:52 GMT
References: <3970004@hpwrce.HP.COM>
Organization: Hewlett Packard - Boise, ID
Lines: 25

/ hpdmd48:comp.lang.apl / kingsley@hpwrce.HP.COM (Kingsley Morse) /  1:05 pm  May  8, 1991 /
Does anyone know how to do this other than writing a loop? Given a matrix

                  M     =     1 2 3
                              4 5 6

and a vector 

                  V     =     7 8

I'd like to multiply 1 2 3 by 7, and multiply 4 5 6 by 8. In other words:

                  1 2 3  x  7 
                  4 5 6     8  


The result will be

                  7  14 21  
                  32 40 48 

Instead of writing a loop to do this, does APL have a more concise way?


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