What would your ideal HP calc look like now?

[Steve Simpkin]

(03-23-2014 09:32 PM)John R. Graham Wrote:  ....
Alas, now that this device is (perhaps nearly) within technical reach, there doesn't seem to be enough money in professional instruments. It is with a bit of nostalgic sadness that I realize I'm no longer sure that Hewlett-Packard will build it. I'm sure someone will, though, one day.

For fun, have you read "THANK YOU, BEEP...!" by Gordon Dickson, (1977)?
http://10784107.42qu.com/15772916

I don't know. It sounds like the current smart phones and tablets are very close to what you were describing. I think there is at least one CAS App that allows you to write an equation on the screen and then uses OCR to interpret and solve it.