[somewhat whimsical] At 2025-03-17T14:23:09+0100, Alejandro Colomar wrote: > On Sun, Mar 02, 2025 at 08:43:31PM +0100, Günther Noack wrote: > > +.TP > > +.B TIOCL_SELPOINTER > > +Show the pointer at position > > -+.RI ( xe ,\~ ye ). > > ++.RI ( xs ,\~ ys ) > > ++or > > ++.RI ( xe ,\~ ye ), > > ++whichever is greater. > > Everything else looks good to me. But, > > What's "greater" when you have two dimensions? Since we can model the terminal display as an inner product space, the terminal driver can compute an orthographic projection of the plane onto a line and from there use routine arithmetic inequality operators. The problem with the Linux kernel's terminal driver's lack of developer attention over the years is obviously a result of it presenting insufficient features of interest to the linear algebraist. ;-) Regards, Branden
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