HP -20S Owner's Manual page 2

Scientific calculator
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() parstrad
SCIENTIFIC
L™
10* X,y LOG Sx,Sy
% Xr
%CHG Yr
Z— mb
oooen
+P +R
HYP TT
a@@
SWAP
CLPRGM
GTO LBL
V x<y?
HEX OCT
+kg »lb
AR
. Separates two numbers.
. Executes a program.
. Activates blue-labeled keys.
. Activates yellow-labeled keys.
. On; clears display, cancels
operation.
. n through Zxy are statistical sum-
mation memory aids.
A x=0?
£x?
DEC BIN
PO
g
oale
SO
FIX SCI
ENG ALL
ABS RND
'
Ixy
+HR +HMS
+DEG»RAD
+Ccm »in
LAST n!
CLRG CLZ
B3] E3
7. Backspace.
8. Loads built-in programs.
9. Enters Program mode.
10. Accumulates statistical data.
11. A through F keys for labels, built-
in programs, hexadecimal digits.
12. Annunciator Line.

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