CASIO fx-5500 Scientific Calculator: The 1st "C.A.S." pocket calculator?

[Leonid]

I meant by changes font exponent before:
\(□■■□□\)
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\(□□■□□\)
\(□■□□□\)
\(■■■■□\)
\(□□□□□\)
\(□□□□□\)


and after calculation:
\(□■■■□\)
\(□□□■□\)
\(□■■■□\)
\(□■□□□\)
\(□■■■□\)
\(□□□□□\)
\(□□□□□\)


This can be seen only for "2"?