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lologs and ilologs
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Rod Lovett
Hello Everyone,
Back in 2006 ( ISRG #29477 ) Bob Otnes (sadly no longer with us) wrote the following: Seeing the current interest in logs and cologs, it might be that some readers would be interested in a short (50k pdf) paper that I have written on lologs and ilologs. Does anyone know what lologs and ilologs are and what they are/were used for? I'm pretty certain this is not a joke! Best wishes, Rod
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Andreas Poschinger
Hi Rod,
I did not look into the old messages (due to time restriction...); this may however senseful to solve the puzzle in order to know what Bob has triggert to write this. May Bobs sentence mean something like: Seeing the current interest in log(arithm)s and co(-)logarithms [i.e. logarithms of inverse numbers 1/x], it might be that some readers would be interested in a short (50k pdf) paper that I have written on lo(g?)logs and i(inverse?)lo(g)logs. ? Best regards Andreas
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Andreas Poschinger
PS: I found in your literature search an article:
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Author Bob Otnes Title Log Log Scales - Revisited Location Journal of the Oughtred Society Vol. 4, No. 1, March, 1995 Pg 9 This fits quite well. So I believe my theory about the meaning of the sentence may be valid... Am 17.05.2022 um 21:59 schrieb Andreas Poschinger:
Hi Rod,
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Rod Lovett
Hi Andreas,
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I think that you are correct. I hadn't associated the "i" with inverse. Now I would like to see some useful applications of these ideas! Best wishes, Rod
On 17-05-2022 21:34, Andreas Poschinger wrote:
PS: I found in your literature search an article:
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Andreas Poschinger
Hi Rod,
to be honest, when flying over the paper I did not find the point in the paper other that somehow the invention history of the inverse Loglog scales is described. Did I miss something? Or is question simply why we could need inverse LogLog scales? Best regards Andreas
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Rod Lovett
Hi Andreas,
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I was merely interested in the uses for an inverse log log function. Regards, Rod
On 18-05-2022 11:27, Andreas Poschinger wrote:
Hi Rod,
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Andreas Poschinger
Hi Rod,
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today I have an online meeting. I will write something together the next days. The mean usages for me right now are: Inverse numbers in their precise value without taking care of the decimal point Calculation of e^(t/T) which is the important function for many technical problems and Calculation of cosh / sinh / tanh if those scales are not existant. Best regards Andreas Am 18.05.2022 um 20:36 schrieb Rod Lovett:
Hi Andreas,
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