π
Aa
○
H₂O
r²
?!
abc
⬡
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📚
📚 Formler
π ≈ 3,14
✕
🧮
Miniräknare
✕
=
7
8
9
÷
4
5
6
×
1
2
3
−
0
,
π
+
(
)
x²
x³
C
⌫
=