Skip to main content
2 events
when toggle format what by license comment
Mar 15, 2016 at 7:30 comment added duje Euler had a version of (1) with $c=a+b+2r$, $d=4r(a+r)(b+r)$, where $ab+1=r^2$. In this case $e_1=0$.
Mar 14, 2016 at 23:54 history answered Tito Piezas III CC BY-SA 3.0