On Sunday, March 9, 2014 2:01:46 PM UTC-5, Steven D'Aprano wrote:
On Sun, Mar 09, 2014 at 04:05:14PM +0100, Antoine Pitrou wrote:
> I'm surprised: are physical calculators (TI-89) still in use today?

I don't know about other places, but in Australia graphing calculators,
including the TI-89 series, are required for all high school school
students doing maths. 

The same is true in the States too; well at least in Southeast Minnesota where
I reside.  Also, I have a son who is planning on engineering school at Iowa
State next fall;  they require the  TI89 {preferably} or equiv for their course work.