HP 35s Scientific Calculator - Manual (Page 306)

B-6 User Memory and the Stack
The Status of the LAST X Register
The following operations save x in the LAST X register in RPN mode:
Notice that /c does not affect the LAST X register.
The recall-arithmetic sequence Xh variable stores x in LASTx and
Xh variable  stores the recalled number in LASTx.
In ALG mode, the LAST X register is a companion to the stack: it holds the number
that is the result of last expression. It supports using the previous expression result in
ALG mode.
+, –, Ч , ч
, x 2 ,
e x , 10 x
LN, LOG y x , I/x, INT÷, Rmdr
SIN, COS, TAN ASIN, ACOS, ATAN
SINH, COSH, TANH ASINH, ACOSH, ATANH IP, FP, SGN, INTG,
RND, ABS
%, %CHG Σ+, Σ– RCL+, –, Ч, ч
HMS , HMS DEG, RAD
nCr nPr ! ARG
CMPLX +, –, Ч ,ч
CMPLX e x , LN, y x , 1/x CMPLX SIN, COS,
TAN
kg, lb
l, gal °C, °F
KM MILE cm, in
x
X y
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