DEG
RECT
STD
ALG
☀
☾
↑
↓
sin
-1
cos
-1
tan
-1
,
∠
n!
☰
sin
cos
tan
(
)
Ans
D/F
π
y
x
7
8
9
÷
±
x
2
√
4
5
6
×
CA
e
x
ln
1
2
3
−
C
log
1/x
0
.
EEX
+
←
ENTER
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