Retro Future
RPL-48
DEG
4:
3:
2:
1:
>
_
SIN
COS
TAN
LN
eˣ
SIN⁻¹
COS⁻¹
TAN⁻¹
LOG
10ˣ
π
e
1/x
x²
DEG
SWAP
s
R↓
r
√x
q
yˣ
^
CLR
c
ENTER ↵
±
n
DROP
d
7
8
9
÷
/
4
5
6
×
*
1
2
3
−
-
0
.
DUP
+
0-9
.
digits
Enter
push
+-*/^
ops
Bksp
delete
Esc
clear