I use a 'Alva' refreshable brailler and it only has 6 keys
It is a 40 cell refreshable braile product but it goes back to 2005.
So please assist me in solving the math's sign riddle.
For instance,
@ sign
% sign
Divide sign
Multiply sign
Add sign
Subtract sign
Sign sign
Cosign sign
Tangent sign
Cotangent sign
Obviously you get the picture.
I intend purchasing the 'Hable' and it too only has 6 keys?
Do we know what solution there is out in the Braille world?
Many thanks,
Garth
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