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OK, so I realise that nobody else is going to be nearly as excited about
this as I am, but... after about an hour of PostScript coding, I was
able to construct a nomogram that correctly expresses the relationship
"X+Y=Z".
That is, pick any pair of variables, pick values for these, draw a
straight line such that it passes through the values you picked on the
appropriate axies, and the point where it passes through the third axis
indicates the correct value for the third variable.
That was *so* worth it, eh? ;-)
Most of the hour was spent tracking down glitches in my PostScript
coding (e.g., making a loop count from 100 to 1 in steps of +1), and
tweaking the asthetics of the page (I know, I'm fussy).
--
http://blog.orphi.me.uk/
http://www.zazzle.com/MathematicalOrchid*
Post a reply to this message
Attachments:
Download 'nomogram-linear1.pdf' (4 KB)
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On Sat, 28 Jun 2008 17:07:53 +0100, Orchid XP v8 <voi### [at] dev null>
wrote:
>OK, so I realise that nobody else is going to be nearly as excited about
>this as I am, but... after about an hour of PostScript coding, I was
>able to construct a nomogram that correctly expresses the relationship
>"X+Y=Z".
Nice and clean. Now one for multiplication.
--
Regards
Stephen
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I don't get it.
--
- Warp
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Stephen wrote:
> Nice and clean. Now one for multiplication.
My dear boy, do you have *any idea* how awkward it is to draw a
logarithmic scale so all the numbers are readable?
At the bottom of the scale, the distance from 1 to 2 is big enough to
fit a parking lot in. But higher up, the distance between (say) 9 and 10
is so tiny you can bearly fit the numbers on without them overlapping.
It's really frustratingly tricky to pick an arrangement of labels and
tick marks that looks "nice and clean".
--
http://blog.orphi.me.uk/
http://www.zazzle.com/MathematicalOrchid*
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Warp wrote:
> I don't get it.
You're not missing much...
This nomogram serves no real useful purpose beyond demonstrating that I
managed to make a working nomogram.
--
http://blog.orphi.me.uk/
http://www.zazzle.com/MathematicalOrchid*
Post a reply to this message
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On Sat, 28 Jun 2008 18:34:57 +0100, Orchid XP v8 <voi### [at] devnull>
wrote:
>
>My dear boy, do you have *any idea* how awkward it is to draw a
>logarithmic scale so all the numbers are readable?
Isn't that what computers are for? Anyway Napier managed to do it by
hand. Have a look at a slide rule.
http://web.mat.bham.ac.uk/C.J.Sangwin/Sliderules/mannheim.pdf
http://web.mat.bham.ac.uk/C.J.Sangwin/Sliderules/fullrule.pdf
Also see
http://web.mat.bham.ac.uk/C.J.Sangwin/Sliderules/nonlogrule.pdf
--
Regards
Stephen
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Stephen wrote:
> Nice and clean. Now one for multiplication.
Here ya go...
Could possibly start marking off 1/20ths near the bottom of each octave
- but the tick marks would have to be increadibly narrow. Doesn't seem
worth it. I already had to make the major marks wider to make the
distinction between the 3 different levels of ticks clearer. I've spent
ages tinkering with this thing!
--
http://blog.orphi.me.uk/
http://www.zazzle.com/MathematicalOrchid*
Post a reply to this message
Attachments:
Download 'nomogram-log1.pdf' (6 KB)
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On Sat, 28 Jun 2008 19:07:56 +0100, Orchid XP v8 <voi### [at] devnull>
wrote:
>Stephen wrote:
>
>> Nice and clean. Now one for multiplication.
>
>Here ya go...
Well done and fast too, I'm impressed.
--
Regards
Stephen
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Stephen wrote:
> Well done and fast too, I'm impressed.
Heh. The linear one was posted at a little after 5, the logarithmic a
little before 7. So only, oh, 2 *hours* to get it right. :-S
Anyway, does it look classy enough yet? ;-)
--
http://blog.orphi.me.uk/
http://www.zazzle.com/MathematicalOrchid*
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Orchid XP v8 <voi### [at] devnull> wrote:
> Warp wrote:
> > I don't get it.
> You're not missing much...
> This nomogram serves no real useful purpose beyond demonstrating that I
> managed to make a working nomogram.
What I don't get is why you posted it here, really. Is it something
interesting, amusing, informative or in some way special? What's the
purpose of posting it? Is there anything there anyone can get something
from? I just don't understand.
--
- Warp
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