Einstein summation library

[Zenw]

On Wednesday, 18 January 2023 at 21:32:50 UTC, klknn wrote:
> On Monday, 16 January 2023 at 10:00:53 UTC, Zenw wrote:
>> https://code.dlang.org/packages/gged/~main
>>
>> I have been working on extending the functionality of 
>> multidimensional arrays using mir.ndslice, and now einstein 
>> summation is available.
>>
>> It may not be practical, but it can be described nicely, like 
>> below, so I will introduce this.
>>
>> ```D
>>     auto A  = iota(9.).array.gged!double(3,3);
>>     auto x  = iota(3.).gged!double(3);
>>     auto Ax = Einsum | A.ij*x.j; // [5, 14, 23]
>> ```
>
> Very nice. Do you plan to make it `@nogc nothrow` like 
> mir-algorithm?


Thank you for your comment. I studied the code of the 
mir-algorithm and now managed to make it @nogc nothrow. :)