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Hi all.

In an earlier post:

HP-35S Calculating Derivatives

the listing is a little unclear.

LBL D
INPUT X
STO C
-->XEQ 001 (what label is the branch target)
STO F
(EQN) 1E-10
STO D
STO+X
X<>Y
XEQ F001
RCL -F
RCL /D
R up
RCL -D
STO X
R down
XEQ F 001
RCL -F
RCL /D
+/-
X<>Y
RTN
STO A
RCL xC
+/-
RCL +F
STO B
RCL A
+/-
1/X
STO E
RCL xC
R up
-
+/-
STO G
(EQN) [A,B]
STO D
(EQN) [E,G]
STO F
RCL D
RCL F
RTN

That should be:
As in the lines bellow.
It evaluates the function F.

(10-31-2022 01:55 AM)Thomas Klemm Wrote: [ -> ]That should be:

Code:

XEQ F001

As in the lines bellow.
It evaluates the function F.

Thanks for the note.

Appreciated.