Half a croissant, on a plate, with a sign in front of it saying '50c'
h a l f b a k e r y
A riddle wrapped in a mystery inside a rich, flaky crust

idea: add, search, annotate, link, view, overview, recent, by name, random

meta: news, help, about, links, report a problem

account: browse anonymously, or get an account and write.




  [vote for,

Need to check your math, but no adding machine available and you've run out of fingers ?

Call the number on your screen and use your touch-tone or dial telephone as an adding machine to punch in the list.

# for + (or + last entry),
* for - (or - last entry),
*# to hear subtotal,
#* to hear total and clear.

Long distance charges may apply.

FlyingToaster, Oct 07 2014

US 5,949,857 http://www.google.com/patents/US5949857
Telephone DTMF signal accessible data processor with calculator program [the porpoise, Oct 08 2014]

Telecaster http://www.abalonev...ar_elite_photos.htm
[normzone, Oct 08 2014]

Please log in.
If you're not logged in, you can see what this page looks like, but you will not be able to add anything.
Short name, e.g., Bob's Coffee
Destination URL. E.g., https://www.coffee.com/
Description (displayed with the short name and URL.)

       + 555-5555 # 5000   

       What button is minus ?
popbottle, Oct 08 2014

       ^ ah, lol, fixed.
FlyingToaster, Oct 08 2014

       ## for multiply
** for divide There could be a book of ever more complicated codes for different functions, e.g. **#*## for sqrt, or ••####*## for arcsin.
pocmloc, Oct 08 2014

       '###' could be used to get at all the unusual functions, using the letters which are printed on your phone's keypad to identify them, so ###74 is Pi, ###76 ("sn") is Sin, ###27 ("cs") is Cos, ###39 ("ex") is exponent, etc.
hippo, Oct 08 2014

       I like this idea a lot.   

       So, it pains me to [link].   

       Good idea still.
the porpoise, Oct 08 2014


back: main index

business  computer  culture  fashion  food  halfbakery  home  other  product  public  science  sport  vehicle