I know keystroke indicator is $k, but how to braille the icons which are printed on calculators? For the attachement, how to braille the “HOME” icon which is beside “on”?
You could devise symbols for the icons, following NC Rule XVI Sec.107. For example, edho for “home”. This calculator key would then be brailled as follows: [braille]$K$HO ON] A transcriber’s note is required to explain the transcriber-devised shape symbols. It also must be listed on the Special Symbols page.