# Messages List

47815

### email addresses

I used to find a users' email address. Somehow, this capability is gone or for me lost. Is this capability still available. I would appreciate a description,.
sliderulenut

8:14 AM

#47815
47814

### Re: Slide Rule Videos

Joe, I've enjoyed your videos--thanks for making them. Perhaps a video on Lee Johnson's "center drift" method would be useful?Dino
Dino Marcantonio

5:15 AM

#47814
47813

### Slide Rule Videos

All, I've been enjoying the discussion on this group since joining a few weeks ago! I am a relative newbie to the slide rule community, having learned most of
joe.herning

6:25 PM

#47813Fetching Sponsored Content...

47812

### Re: Computation of small angles without an ST scale

Joe, I can't find you email address. Let me know and I will send a copy. The title is SR or SRT. marion use jayhawk999@...
sliderulenut

2:10 PM

#47812
47811

### Re: Computation of small angles without an ST scale

Marion, What is the title of the article? I can't seem to find it. Perhaps you can e-mail it to me. I'm curious to know what errors you are talking about --
joe.herning

Apr 23

#47811
47810

### Re: Radius vs Decade

Barney, "Order" is good term for the concept, and "order n" could also indicate which power of ten pertains-- so there is radius, cycle, decade, and order to
ttwetmore

Apr 22

#47810
47809

### Slide rules for sale.

I have been contacted by a Ms. Amanda Trant (AMANDA TRANT ). She is selling her father's small slide rule collection. She is
John Cadick

Apr 22

#47809
47807

### Re: Computation of small angles without an ST scale

Joe, read carefully my paper on SR or SRT published in the OS Journal. There is a table on errors in various functions marion moon
sliderulenut

Apr 21

#47807
47806

### Re: Computation of small angles without an ST scale

Marion, There should be zero theoretical error when using this method for tan(6) or sin(6) since you are computing 6*tan(6)/6 or 6*sin(6)/6. Actually
joe.herning

Apr 21

#47806
47805

### Re: Computation of small angles without an ST scale

Here is the detailed description of my comments on small angles. The Aristo Hyperbolog Hyperlog 0971/0972 Instruction Manual produced another surprise. This
sliderulenut

Apr 21

#47805
47804

### Re: Computation of small angles without an ST scale

Marion, My first thought is that since 6 deg is still small, sin(6 deg)/6 ~= (6 deg * pi / 180) / 6 = pi / 180. Thus you are essentially converting to radians
joe.herning

Apr 20

#47804
47803

### Computation of small angles without an ST scale

Recently, some have questioned the calculation of small trig angles without an ST scale To compute sine/tangent for angles up to 4°: Divide the angle by
sliderulenut

Apr 20

#47803
47802

### Re: Slide Rule Creator (Java Application)

Hi Damian Apparently my first upload attempt was failed. I tried to re-upload it, but this time I noticed an error message appeared on the bottom of the
masaakimurakami

Apr 19

#47802
47801

### Re: Pickett N1010-ES scales

Mine is not the SuperPower Trig model, just the base model N101ES. It's a nice, slim rule that works fine for non-log-log stuff. The N3 has me spoiled with the
dfroula@sbcglobal.net

Apr 19

#47801Fetching Sponsored Content...

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