0
DEG
2ND
INV
LRN
ENG
DEG
RAD
GRA
Texas Instruments
SR-56
2nd
INV
log
ln x
10ˣ
eˣ
CLR
f(n)
LRN
dsz
GTO
|x|
sin
Int
cos
1/x
tan
bst
SST
x=t
x⇌t
CMs
STO
EXC
RCL
PROD
SUM
NOP
R/S
x≥t
RST
√x
x²
fix
EE
y
√x
yˣ
CP
CE
subr
(
rtn
)
pause
÷
Ins
7
del
8
9
π
×
Σ+
4
Σ-
5
6
RAD
−
Mean
1
P→R
2
R→P
3
+
Sdev
0
rnd
.
mems
+/−
list
=
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