[cyphar]

I'm very confused. This was an example of applications of linear algebra in my first year course on it. Why was this published in an actual journal? Anyone who has gone through the first semester of university already knows that they can do this...

[jpfr]

Scam-Journals are a business. https://en.wikipedia.org/wiki/Predatory_open_access_publishi...

Enough people succumb to the pressure and publish anything just to look good on the publication count metric.