Re: [Bug-apl] inner product

[enztec]

yes last dimension of a must be = to first dimension of b

but then

x←1 2 3 4
y←1 3 3 3

x+.=y   works 


On Fri, 17 Mar 2017 17:29:24 +0100
Juergen Sauermann <address@hidden> wrote:

> Hi,
> 
> the number of columns in a must match the number of rows in b (or the other 
> way around,
> I don't quite remember).
> 
> Try:
> 
>       a+.=⍉b
> 3 0 0 0 0
> 0 3 0 0 0
> 0 0 3 0 0
> 0 0 0 3 0
> 0 0 0 0 3
> 
> /// Jürgen
> 
> 
> On 03/17/2017 05:17 PM, address@hidden wrote:
> Hi
> 
> what am i missing here?
> 
> a←b←5 3⍴⍳8
> 
> a=b
> 
> +/a=b
> 
> a+.=b     length error
> 
> 
> 
>