The Museum of HP Calculators

Parallel -- Counter Flow Heat Exchangers for the HP-41C/CV/CX

This program is Copyright © HP and is used here by permission. It was originally printed in the HP-67 M.E. Pac 1. This program was ported to the HP-41C by reading with the HP-41C card reader and the card reader may be required for operation of this program. 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 "HXPE67"
 02 LBL 15
 03 LBL a
 04 STO 02
 05 RTN
 06 LBL 16
 07 LBL b
 08 *
 09 STO 03
 10 RTN
 11 LBL 17
 12 LBL c
 13 STO 01
 14 RTN
 15 LBL 18
 16 LBL d
 17 *
 18 STO 04
 19 RTN
 20 LBL 19
 21 LBL e
 22 FS? 01
 23 GTO 00
 24 0
 25 SF 01
 26 RTN
 27 LBL 00
 28 1
 29 CF 01
 30 RTN
 31 LBL 10
 32 LBL A
 33 STO 05
 34 XEQ 01
 35 XEQ 00
 36 STO 08
 37 RTN
 38 LBL 11
 39 LBL B
 40 STO 08
 41 XEQ 01
 42 XEQ 02
 43 RCL 07
 44 *
 45 RCL 01
 46 RCL 02
 47 -
 48 *
 49 STO 06
 50 RTN
 51 LBL 12
 52 LBL C
 53 STO 06
 54 RCL 03
 55 /
 56 RCL 02
 57 +
 58 RTN
 59 LBL 13
 60 LBL D
 61 RCL 02
 62 -
 63 RCL 03
 64 *
 65 RCL 04
 66 /
 67 RCL 01
 68 -
 69 CHS
 70 RTN
 71 LBL 14
 72 LBL E
 73 STO 05
 74 XEQ 01
 75 RCL 04
 76 RCL 07
 77 /
 78 RCL 01
 79 RCL 05
 80 -
 81 *
 82 RCL 01
 83 RCL 02
 84 -
 85 /
 86 STO 05
 87 RTN
 88 LBL 00
 89 X#0?
 90 GTO 00
 91 1
 92 RCL 05
 93 -
 94 LN
 95 CHS
 96 RTN
 97 LBL 02
 98 X#0?
 99 GTO 02
100 1
101 RCL 08
102 CHS
103 E^X
104 -
105 RTN
106 LBL 01
107 RCL 03
108 RCL 04
109 X>Y?
110 X<>Y
111 STO 07
112 X<>Y
113 /
114 STO 00
115 RTN
116 STOP
117 STOP
118 STOP
119 STOP
120 STOP
121 STOP
122 STOP
123 STOP
124 LBL 00
125 XEQ 06
126 2
127 *
128 RCL 06
129 2
130 RCL 05
131 /
132 +
133 RCL 09
134 -
135 /
136 CHS
137 1
138 +
139 LN
140 RCL 06
141 /
142 CHS
143 RCL 07
144 /
145 LASTX
146 ENTER
147 *
148 *
149 RTN
150 LBL 02
151 XEQ 06
152 RCL 08
153 RCL 07
154 /
155 RCL 06
156 *
157 CHS
158 E^X
159 1
160 X<>Y
161 +
162 1
163 LASTX
164 -
165 /
166 RCL 06
167 *
168 RCL 09
169 +
170 2
171 X<>Y
172 /
173 RTN
174 LBL 06
175 RCL 00
176 1
177 +
178 STO 09
179 RCL 00
180 X^2
181 1
182 +
183 SQRT
184 STO 06
185 RTN
186 STOP
187 END

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