(12C) Geometric & Harmonic Mean
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06-26-2024, 04:51 AM
Post: #1
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(12C) Geometric & Harmonic Mean
Program to calculate the Geometric and Hamonic Mean
-------------------------------------------------------------- Procedure: For every new problem first " Clear Statistic Registers " To clear statistic register press [f] [Σ] -------------------------------------------------------------- Enter each Data Value press [R/S] and display will show the number of data entered 1, 2, 3, ....... , n When done press 0 [R/S] display answer for Geometric Mean [X<>Y] display answer for Harmonic Mean --------------------------------------------------------------- Example: Data: 30, 10 [f] [Σ] 30 [R/S] display 1 10 [R/S] display 2 0 [R/S] display answer for GM = 17.3205 [X<>Y] for HM = 15 ---------------------------------------------------------------- Program: Quote:01 X=0 Gamo 6/2024 |
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06-26-2024, 03:08 PM
Post: #2
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RE: (12C) Geometric & Harmonic Mean
I am trying to load this program in my HP-25, and have difficulty understanding step number 9: x-bar//[g] [0]. Can you assist me please. Pedro
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06-26-2024, 04:50 PM
Post: #3
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RE: (12C) Geometric & Harmonic Mean
(06-26-2024 03:08 PM)PedroLeiva Wrote: I am trying to load this program in my HP-25, and have difficulty understanding step number 9: x-bar//[g] [0]. Can you assist me please. Pedro "x-bar" is the "mean of x", located at [g] [0] on the HP-12C. It calculates both the mean of X and the mean of Y. On the HP-25, it looks like x-bar is located at [f] [x<>y] according to the images that I see on the internet. No idea if it calculates both x-bar and y-bar like the HP-12C. |
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06-26-2024, 05:48 PM
Post: #4
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RE: (12C) Geometric & Harmonic Mean
(06-26-2024 04:50 PM)bxparks Wrote:TYVM, I will test and inform. Pedro(06-26-2024 03:08 PM)PedroLeiva Wrote: I am trying to load this program in my HP-25, and have difficulty understanding step number 9: x-bar//[g] [0]. Can you assist me please. Pedro |
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06-27-2024, 09:58 AM
(This post was last modified: 06-27-2024 10:04 AM by Gamo.)
Post: #5
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RE: (12C) Geometric & Harmonic Mean
I'm looking in the HP25 User's Handbook on page 68
About using the (Mean) function the X-bar key. Example provided only the Mean Value on the X-Stack and look like no Mean Calculation on the Y-Stack unlike the HP-12C example on page 89 Remark: This program on line 10 the [X<>Y] key swap the Y-Stack for the Mean Value from the Y-Stack to calculate the Harmonic Mean Gamo |
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06-27-2024, 10:02 AM
Post: #6
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RE: (12C) Geometric & Harmonic Mean
Yes Gamo, you are right. For double mean (X & Y) stack values I will have to use HP-67. Thanks for taking care of the issue. Pedro
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06-27-2024, 02:25 PM
Post: #7
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RE: (12C) Geometric & Harmonic Mean
(06-27-2024 10:02 AM)PedroLeiva Wrote: Yes Gamo, you are right. For double mean (X & Y) stack values I will have to use HP-67. Thanks for taking care of the issue. Pedro The same HP-25 manual also says that Σy is collected in R4, and N is collected in R3. And ybar=Σy/N. It shouldn't be hard to adapt the program to the HP-25 by calculating ybar manually using R4 and R3. |
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06-27-2024, 09:40 PM
Post: #8
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RE: (12C) Geometric & Harmonic Mean
I have an HP-25C version of Geometric and Harmonic Mean, but 8MB load cuota is exceeded. If anyone is interested, please send me an email to: pedrodanielleiva@gmail.com. As far as I know with private messages is not possible to attach files. Pedro
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06-27-2024, 11:40 PM
Post: #9
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RE: (12C) Geometric & Harmonic Mean
(06-27-2024 09:40 PM)PedroLeiva Wrote: I have an HP-25C version of Geometric and Harmonic Mean, but … Pedro as received from same ![]() BEST! SlideRule |
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06-27-2024, 11:59 PM
Post: #10
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RE: (12C) Geometric & Harmonic Mean
Thank you SlideRule
Pedro |
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06-29-2024, 04:10 AM
Post: #11
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RE: (12C) Geometric & Harmonic Mean
Program update from Post #1 to include the Arithmetic mean
Usage: Data: 40, 10 [f] REG [f] Σ 40 [R/S] display 1 10 [R/S] display 2 0 [R/S] display answer for AM is 25 [R↓] display answer for GM is 20 [R↓] display answer for HM is 16 Remark: AM > GM > HM ----------------------------------------- Program: Quote:01 X=0 Gamo |
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