[FRIAM] Tweet from MathType (@MathType)

[Barry MacKichan]

For example, the identity matrix (all zeroes except for ones on the 
diagonal) is given by the ith element of the jth row is the Kronecker 
delta of i and j.

—Barry


On 8 Jun 2020, at 16:12, Frank Wimberly wrote:

> Kronecker delta Is trivial.  It has two arguments.  If they're equal 
> the
> result is 1.  If not the result is 0.
>
> ---
> Frank C. Wimberly
> 140 Calle Ojo Feliz,
> Santa Fe, NM 87505
>
> 505 670-9918
> Santa Fe, NM
>
> On Mon, Jun 8, 2020, 2:05 PM Tom Johnson <tom at jtjohnson.com> wrote:
>
>> Sorry, I don't have any context.  I just saw the reference and 
>> reference
>> to  Kroneker Delta.  I had not heard of it, so I even before I did
>> research, I thought I would save time by asking this august panel.
>> Tom, Duke of Lazy
>>
>> ============================================
>> Tom Johnson - tom at jtjohnson.com
>> Institute for Analytic Journalism   --     Santa Fe, NM USA
>> 505.577.6482(c)                                    505.473.9646(h)
>> *NM Foundation for Open Government* <http://nmfog.org>
>> *Check out It's The People's Data
>> <https://www.facebook.com/pages/Its-The-Peoples-Data/1599854626919671>*
>>
>> ============================================
>>
>>
>> On Mon, Jun 8, 2020 at 12:54 PM Steve Smith <sasmyth at swcp.com> wrote:
>>
>>> Tom -
>>>
>>> Can you provide a little more context?  The Kroneker Delta/Iverson
>>> Bracket is  a pretty fundamental and generally useful(used) 
>>> abstraction
>>> across lots of domains.
>>>
>>> If you are trying to use the tweeted advice you quoted, you must be
>>> working with "logical conditions and truth values in some formula"?  
>>>  But
>>> that only narrows it down a little?
>>>
>>> - Steve
>>>
>>> Who can tell us more about the Kronekernel Delta process and how, 
>>> when,
>>> where it can be used?
>>>
>>> MathType (@MathType) Tweeted:
>>> The Iverson Bracket is a powerful generalization of the well known
>>> Kronecker Delta, very useful for embedding logical conditions and 
>>> truth
>>> values into your formulas #Notation #MathType
>>>
>>> https://t.co/k5Nz8y7NQi
>>> https://twitter.com/MathType/status/1269864297104097282?s=20
>>>
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