This program is Copyright © HP and is used here by permission. It was originally printed in the HP-67 Photo Dark Room 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
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LINE KEYS 01 LBL "COLPRT" 02 LBL 12 03 LBL C 04 STO 22 05 RCL 23 06 * 07 STO 09 08 RCL 23 09 1 10 X>Y? 11 GTO 01 12 X<>Y 13 XEQ 02 14 RCL 09 15 * 16 GTO 00 17 LBL 01 18 RCL 23 19 1/X 20 XEQ 02 21 RCL 22 22 / 23 RCL 23 24 / 25 1/X 26 LBL 00 27 CF 22 28 7DSP1 29 RND 30 7DSP2 31 RTN 32 LBL 02 33 LN 34 .2587 35 * 36 .9834 37 + 38 RTN 39 LBL 13 40 LBL D 41 FS?C 22 42 GTO 03 43 RCL 23 44 LOG 45 2 46 LOG 47 / 48 RTN 49 LBL 03 50 2 51 LOG 52 * 53 10^X 54 GTO 05 55 LBL 14 56 LBL E 57 1 58 + 59 X^2 60 X<>Y 61 1 62 + 63 X^2 64 / 65 GTO 05 66 LBL 19 67 LBL e 68 X^2 69 X<>Y 70 X^2 71 / 72 GTO 05 73 LBL 10 74 LBL A 75 X=0? 76 GTO 00 77 20 78 GTO 04 79 LBL 00 80 STO 20 81 STO 21 82 RTN 83 LBL 11 84 LBL B 85 21 86 LBL 04 87 STO 25 88 X<>Y 89 ST+ IND 25 90 RCL IND 25 91 RTN 92 RCL 21 93 RCL 20 94 - 95 10^X 96 LBL 05 97 RCL 23 98 X<>Y 99 STO 23 100 CF 22 101 RTN 102 * 103 STO 23 104 RTN 105 LBL 16 106 LBL b 107 .118 108 Y^X 109 .031 110 * 111 RTN 112 LBL 17 113 LBL c 114 .006 115 * 116 .04 117 + 118 RTN 119 LBL 18 120 LBL d 121 .003 122 * 123 .05 124 + 125 RTN 126 STOP 127 END
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