Timeline for Double trace of a square matrix
Current License: CC BY-SA 4.0
5 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Oct 27, 2021 at 16:38 | history | edited | Arnauld | CC BY-SA 4.0 | added a shorter version |
| Oct 26, 2021 at 2:01 | comment | added | tsh | You can give Array.prototype.at a try which is introduced by ES2022: m=>m.reduce((t,r,i)=>t+r[i]+r.at(~i,r[i]=0),0) | |
| Oct 25, 2021 at 7:07 | history | edited | Arnauld | CC BY-SA 4.0 | minor clarifications |
| Oct 24, 2021 at 12:07 | history | edited | Arnauld | CC BY-SA 4.0 | added a commented version |
| Oct 24, 2021 at 11:46 | history | answered | Arnauld | CC BY-SA 4.0 |