TEXTOUT on formula

[flo]

hello,
I create this account because I have a problem :
I want to print formula into graphic screen.
I build a program for math purpose,
for example, see this picture :

how can I print things like (2*√3 /9) +1 ???

TI calc users can have this kind of program, but not us ???
isn't hpprime superior to TI ?
I think the formula printing feature is missing ! please consider to add it.

BTW, I think that the whole variation table (as show in the screenshot) could be an official hp app. it would be great.