The Museum of HP Calculators


Einstein's Twin Paradox for the HP-41C/CV/CX

This program is Copyright © HP and is used here by permission. It was originally printed in the Physics Solution Book. This program was entered and uploaded by Tony Duell.

This program is supplied without representation or warranty of any kind. Tony Duell, Hewlett Packard and The Museum of HP Calculators therefore assume no responsibility and shall have no liability, consequential or otherwise, of any kind arising from the use of this program material or any part thereof.

Documentation Information (CD or source code)
How to get this Program to your Calculator (via HP-IL, disk, wand, and fingers)
Download Binary (.raw) program for disk or PC HP-IL Card download
Download Hexadecimal (.dat) program for Serial Port download

Program Listing

LINE  KEYS
 01 LBL "TWIN"
 02 CF 22
 03 SF 27
 04 "READY"
 05 AVIEW
 06 RTN
 07 LBL A
 08 FS?C 22
 09 GTO 00
 10 1
 11 RCL 01
 12 RCL 02
 13 /
 14 X^2
 15 -
 16 SQRT
 17 2.9979 E8
 18 *
 19 LBL 00
 20 STO 00
 21 "V="
 22 GTO 02
 23 LBL B
 24 FS?C 22
 25 GTO 00
 26 XEQ 01
 27 RCL 02
 28 *
 29 LBL 00
 30 STO 01
 31 "TS="
 32 GTO 02
 33 LBL C
 34 FS?C 22
 35 GTO 00
 36 XEQ 01
 37 1/X
 38 RCL 01
 39 *
 40 LBL 00
 41 STO 02
 42 "TE="
 43 LBL 02
 44 ARCL X
 45 AVIEW
 46 RTN
 47 LBL 01
 48 1
 49 RCL 00
 50 2.9979 E8
 51 /
 52 X^2
 53 -
 54 SQRT
 55 RTN
 56 END

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