The Museum of HP Calculators

Equations of State 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 "EQST67"
 02 LBL 15
 03 LBL a
 04 FS? 00
 05 GTO 00
 06 0
 07 SF 00
 08 RTN
 09 LBL 00
 10 1
 11 CF 00
 12 RTN
 13 LBL 16
 14 LBL b
 15 CF 22
 16 STO 22
 17 RTN
 18 LBL 17
 19 LBL c
 20 CF 22
 21 STO 23
 22 RTN
 23 LBL 10
 24 LBL A
 25 5
 26 GTO 00
 27 LBL 11
 28 LBL B
 29 6
 30 GTO 00
 31 LBL 12
 32 LBL C
 33 7
 34 GTO 00
 35 LBL 13
 36 LBL D
 37 8
 38 GTO 00
 39 LBL 14
 40 LBL E
 41 9
 42 LBL 00
 43 CF 01
 44 STO 25
 45 RDN
 46 STO IND 25
 47 FS?C 22
 48 RTN
 49 1
 50 STO IND 25
 51 7GTOI
 52 LBL 05
 53 LBL 06
 54 RCL 07
 55 RCL 08
 56 *
 57 RCL 09
 58 *
 59 RCL 05
 60 RCL 06
 61 *
 62 /
 63 STO IND 25
 64 GTO 00
 65 LBL 07
 66 LBL 08
 67 SF 01
 68 LBL 09
 69 RCL 05
 70 RCL 06
 71 *
 72 RCL 07
 73 /
 74 RCL 08
 75 /
 76 RCL 09
 77 /
 78 STO IND 25
 79 LBL 00
 80 FS? 00
 81 RTN
 82 XEQ 01
 83 GTO 00
 84 LBL 02
 85 FS? 01
 86 XEQ 01
 87 LBL 00
 88 RCL 24
 89 RCL 09
 90 *
 91 RCL 06
 92 RCL 21
 93 -
 94 STO 04
 95 /
 96 RCL 20
 97 RCL 09
 98 SQRT
 99 /
100 STO 02
101 RCL 06
102 /
103 LASTX
104 RCL 21
105 +
106 STO 03
107 /
108 -
109 RCL 05
110 -
111 7GSBI
112 /
113 ST- IND 25
114 RCL IND 25
115 /
116 ABS
117  E-4
118 X<=Y?
119 GTO 02
120 RCL IND 25
121 RTN
122 LBL 06
123 RCL 06
124 ENTER
125 +
126 RCL 21
127 +
128 RCL 02
129 *
130 RCL 03
131 RCL 06
132 *
133 X^2
134 /
135 RCL 24
136 RCL 09
137 *
138 RCL 04
139 X^2
140 /
141 -
142 RTN
143 LBL 09
144 RCL 24
145 RCL 04
146 /
147 RCL 02
148 2
149 /
150 RCL 09
151 /
152 RCL 06
153 /
154 RCL 03
155 /
156 +
157 RTN
158 LBL 07
159 LBL 08
160 RCL 09
161 RCL 06
162 *
163 RCL 04
164 X^2
165 /
166 RCL 06
167 ENTER
168 +
169 RCL 21
170 +
171 RCL 24
172 /
173 RCL 06
174 /
175 RCL 03
176 X^2
177 /
178 RCL 02
179 *
180 -
181 RCL 24
182 *
183 RCL IND 25
184 /
185 RTN
186 LBL 05
187 LASTX
188 +
189 STO 05
190 STOP
191 LBL 01
192 RCL 07
193 RCL 08
194 *
195 STO 24
196 .0867
197 RCL 23
198 /
199 X<>Y
200 RCL 22
201 *
202 *
203 STO 21
204 LASTX
205 *
206 RCL 22
207 SQRT
208 *
209 4.934
210 *
211 STO 20
212 RTN
213 STOP
214 END

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