The Museum of HP Calculators


3 parameters curve fit for the HP-67

This program is by Aderbal Carlos de Oliveira and is used here by permission.

This program is supplied without representation or warranty of any kind. Aderbal Carlos de Oliveira 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.

Overview

Given M of data points (xi,yi) and a function f(xi,yi,a1,a2,a3) , determine the parameters a1,a2,a3, which are the best fit for the given set of points (xi,yi).

Listing

001  *LBLA     31 25 11
002   CLRG     31 43
003   P⇔S      31 42
004   *LBLB    31 25 12
005   R/S      84
006   STO0     33 00
007   X⇔Y      35 52
008   CHS      42
009   STO6     33 06
010   GSB1     31 22 01
011   STO5     33 05
012   ST+6     33 61 06
013   3        03     
014   STOI     35 33
015   *LBL2    31 25 02
016   RCLI     35 34
017   1        01     
018   9        09     
019   +        61     
020   STOI     35 33
021   RCL(i)   34 24
022   EEX      43
023   3        03
024   ÷        81
025   STO7     33 07
026   ST+(i)   33 61 24
027   GSB1     31 22 01
028   RCL5     34 05
029   -        51
030   RCL7     34 07
031   ST-(i)   33 51 24
032   ÷        81
033   RCLI     35 34
034   1        01
035   9        09
036   -        51
037   STOI     35 33
038   X⇔Y      35 52
039   STO(i)   33 24
040   RCL6     34 06
041   x        71
042   P⇔S      31 42
043   ST+(i)   33 61 24
044   P⇔S      31 42
045   DSZI     31 33
046   GTO2     22 02
047   1        01
048   9        09
049   STO6     33 06
050   3        03
051   STO0     33 00
052   *LBL3    31 25 03
053   STOI     35 33
054   RCL(i)   34 24
055   STO5     33 05
056   *LBL4    31 25 04
057   RCLI     35 34
058   STO7     33 07
059   RCL5     34 05
060   RCL(i)   34 24
061   x        71
062   RCL6     34 06
063   STOI     35 33
064   1        01
065   ST-6     33 51 06
066   R dn     35 53
067   R dn     35 53
068   ST+(i)   33 61 24
069   RCL7     34 07
070   STOI     35 33
071   DSZI     31 33
072   GTO4     22 04
073   1        01
074   ST-0     33 51 00
075   RCL0     34 00
076   X>0?     31 81
077   GTO3     22 03
078   GTOB     22 12
079   *LBLD    31 25 14
080   P⇔S      31 42
081   RCL5     34 05
082   x2       32 54
083   RCL4     34 04
084   ÷        81
085   ST-6     33 51 06
086   RCL7     34 07
087   RCL5     34 05
088   x        71
089   RCL4     34 04
090   ÷        81
091   ST-8     33 51 08
092   RCL5     34 05
093   RCL1     34 01
094   x        71
095   RCL4     34 04
096   ÷        81
097   ST-2     33 51 02
098   RCL7     34 07
099   RCL1     34 01
100   x        71
101   RCL4     34 04
102   ÷        81
103   ST-3     33 51 03
104   RCL7     34 07
105   x2       32 54
106   RCL4     34 04
107   ÷        81
108   ST-9     33 51 09
109   RCL6     34 06
110   STx3     33 71 03
111   RCL8     34 08
112   RCL2     34 02
113   x        71
114   ST-3     33 51 03
115   RCL6     34 06
116   RCL9     34 09
117   x        71
118   RCL8     34 08
119   x2       32 54
120   -        51
121   ST÷3     33 81 03
122   RCL3     34 03
123   RCL8     34 08
124   x        71
125   ST-2     33 51 02
126   RCL6     34 06
127   ST÷2     33 81 02
128   RCL2     34 02
129   RCL5     34 05
130   x        71
131   ST-1     33 51 01
132   RCL3     34 03
133   RCL7     34 07
134   x        71
135   ST-1     33 51 01
136   RCL4     34 04
137   ST÷1     33 81 01
138   RCLA     34 11
139   ST-1     33 51 01
140   RCLB     34 12
141   ST-2     33 51 02
142   RCLC     34 13
143   ST-3     33 51 03
144   P⇔S      31 42
145   CLRG     31 43
146   P⇔S      31 42
147   RCL1     34 01
148   CHS      42
149   STOA     33 11
150   RCL2     34 02
151   CHS      42
152   STOB     33 12
153   RCL3     34 03
154   CHS      42
155   STOC     33 13
156   GTOB     22 12
157   *LBLE    31 25 15
158   STO0     33 00
159   GSB1     31 22 01
160   *LBL1    31 25 01
161   RCL0     34 00
162   ENTER↑   41
163   x2       32 54
164   RCLA     34 11
165   x        71
166   X⇔Y      35 52
167   CHS      42
168   RCLB     34 12

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