EAGLE Netlist conversion

Spehro Pefhany · Sep 29, 2004

On Sun, 16 May 2004 08:50:17 -0500, the renowned John Fields
<jfields@austininstruments.com> wrote:

On Sun, 16 May 2004 06:13:20 GMT, "Rich Grise" <null@example.net
wrote:

"buck rojerz" <inorbit@outerspace.org> wrote in message
news:Xns94EADFC309243ou812@216.168.3.44...

Holy Cow! That's the most complicated method of F to C that I've ever
seen. Try this one. I was told about it about almost 20 yeara ago.

F + 40 / 1.8 - 40 = C
C + 40 X 1.8 - 40 = F

Perform them in the order indicated. I don't recall the "Agebraic rule"
of whether X & / are performed first or if + & - are performed first and
that rule might screw it up, as shown. I should have paid more attention
in math class.

(F - 32) C
-------- = ---
(212 - 32) 100

---
????

F = 1.8C + 32
C = 1.8 (F-32)

Simple...

The second one seems a bit inaccurate at any temperature other than
0°C.

One thing that seems to screw up some people is when you have to
convert differential temperatures (such as proportional band,
hysteresis or whatever) they sometimes don't think and use formulas as
so:

deadband = 5°C, so it should display as (5 * 1.8) + 32 = 41°F
rather than the correct number (9°F).

Best regards,
Spehro Pefhany
--
"it's the network..." "The Journey is the reward"
speff@interlog.com Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog Info for designers: http://www.speff.com

Chuck Harris · Sep 29, 2004

Spehro Pefhany wrote:

(F - 32) C
-------- = ---
(212 - 32) 100

---
????

F = 1.8C + 32
C = 1.8 (F-32)

Simple...

The second one seems a bit inaccurate at any temperature other than
0°C.

Come on guys, this isn't that tough:

F = (9/5)C + 32
C = (5/9)(F-32)

or,

F = 1.8C + 32
C = (F-32)/1.8

Then for additional fun, what temperature is
the same for both farenheit and celsius?

F = 1.8C + 32, let F = C, so:

F = 1.8F + 32

F - 1.8F = 32

-0.8F = 32

F = -32/0.8

F = -40

-Chuck

John Fields · Sep 29, 2004

On Sun, 16 May 2004 14:36:26 GMT, Spehro Pefhany
<speffSNIP@interlogDOTyou.knowwhat> wrote:

On Sun, 16 May 2004 08:50:17 -0500, the renowned John Fields
jfields@austininstruments.com> wrote:

---
????

F = 1.8C + 32
C = 1.8 (F-32)

Simple...

The second one seems a bit inaccurate at any temperature other than
0°C.

---
Aaarghhh!!!

1.8C + 32 = F

1.8C = F - 32

C = (F-32)/1.8

Howzat?

--
John Fields

Spehro Pefhany · Sep 29, 2004

On Sun, 16 May 2004 11:33:46 -0400, the renowned Chuck Harris
<cfharris@erols.com> wrote:

Spehro Pefhany wrote:

(F - 32) C
-------- = ---
(212 - 32) 100

---
????

F = 1.8C + 32
C = 1.8 (F-32)

Simple...

The second one seems a bit inaccurate at any temperature other than
0°C.

Come on guys, this isn't that tough:

F = (9/5)C + 32
C = (5/9)(F-32)

or,

F = 1.8C + 32
C = (F-32)/1.8

Then for additional fun, what temperature is
the same for both farenheit and celsius?

F = 1.8C + 32, let F = C, so:

F = 1.8F + 32

F - 1.8F = 32

-0.8F = 32

F = -32/0.8

F = -40

That's "Fahrenheit", as in the German-Dutch scientist Gabriel Daniel
Fahrenheit.

Best regards,
Spehro Pefhany
--
"it's the network..." "The Journey is the reward"
speff@interlog.com Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog Info for designers: http://www.speff.com

Watson A.Name - \"Watt Su · Sep 29, 2004

"maxfoo" <maxfooHeadFromButt@punkass.com> wrote in message
news:u17ca01q5r19uik13as30o30nnetj0t453@4ax.com...

On Sat, 15 May 2004 08:17:47 GMT, B Thomas
thomasb@math.ohio-state.edu> wrote:

Hi,
Is there any utility to convert units from one to another?
sincerely
b thomas

This is my favorite one...

Convert is an easy to use unit conversion program that will convert
the most
popular units of distance, temperature, volume, time, speed, mass,
power,
density, pressure, energy and many others, including the ability to
create
custom conversions!

http://www.joshmadison.com/software/convert/

Even furlongs per fortnight, and attoparsecs?? ;-)

Really, there must be humdreds of these in any web search.

--
@@F@r@o@m@@O@r@a@n@g@e@@C@o@u@n@t@y@,@@C@a@l@,@@w@h@e@r@e@@
###Got a Question about ELECTRONICS? Check HERE First:###
http://users.pandora.be/educypedia/electronics/databank.htm
My email address is whitelisted. *All* email sent to it
goes directly to the trash unless you add NOSPAM in the
Subject: line with other stuff. alondra101 <at> hotmail.com
Don't be ripped off by the big book dealers. Go to the URL
that will give you a choice and save you money(up to half).
http://www.everybookstore.com You'll be glad you did!
Just when you thought you had all this figured out, the gov't
changed it: http://physics.nist.gov/cuu/Units/binary.html
@@t@h@e@@a@f@f@l@u@e@n@t@@m@e@e@t@@t@h@e@@E@f@f@l@u@e@n@t@@

maxfoo · Sep 29, 2004

On Sun, 16 May 2004 10:51:24 -0700, "Watson A.Name - \"Watt Sun, the Dark
Remover\"" <NOSPAM@dslextreme.com> wrote:

http://www.joshmadison.com/software/convert/

Even furlongs per fortnight, and attoparsecs?? ;-)

yes, they are included...

Remove "HeadFromButt", before replying by email.

Rich Grise · Sep 29, 2004

"John Fields" <jfields@austininstruments.com> wrote in message
news:86sea093lb2o5m7i5g6fethud7jisjjqp7@4ax.com...

On Sun, 16 May 2004 06:13:20 GMT, "Rich Grise" <null@example.net

(F - 32) C
-------- = ---
(212 - 32) 100

---
????

It's from how the conversion was derived. THe freezing point is
32 F == 0 C, the boiling point is 212 F == 100 C. Therefore
the interval from freezing to boiling is 180 fahrenheit degrees,
== 100 celsius degrees. Subtract the 32 degree offset from F,
and it's 180:100.

(F - 32) C
-------- = ---
(212 - 32) 100

212 - 32 = 180

(F - 32) C
-------- = ---
180 100

100 * (F - 32) = C * 180

and so on.

Cheers!
Rich

Chuck Harris · Sep 29, 2004

Spehro Pefhany wrote:

The second one seems a bit inaccurate at any temperature other than
0°C.

Come on guys, this isn't that tough:

F = (9/5)C + 32
C = (5/9)(F-32)

or,

F = 1.8C + 32
C = (F-32)/1.8

Then for additional fun, what temperature is
the same for both farenheit and celsius?

F = 1.8C + 32, let F = C, so:

F = 1.8F + 32

F - 1.8F = 32

-0.8F = 32

F = -32/0.8

F = -40

That's "Fahrenheit", as in the German-Dutch scientist Gabriel Daniel
Fahrenheit.

I'll try and remember that. I usually spell Fahrenheit "F".

-Chuck

R. Steve Walz · Sep 29, 2004

buck rojerz wrote:

nospam <nospam@nospam.invalid> wrote in
news:lifca0haposhn178i2pf83d67gjrnpm4is@4ax.com:

maxfoo <maxfooHeadFromButt@punkass.com> wrote:

On Sat, 15 May 2004 08:17:47 GMT, B Thomas
thomasb@math.ohio-state.edu> wrote:

Hi,
Is there any utility to convert units from one to another?
sincerely
b thomas

This is my favorite one...

Convert is an easy to use unit conversion program that will convert
the most popular units of distance, temperature, volume, time, speed,
mass, power, density, pressure, energy and many others, including the
ability to create custom conversions!

http://www.joshmadison.com/software/convert/

I'm sure there are lots of others and started to write one myself.

Is there much interest in these utilities? Should I carry on?

My design is like a 2 column spread sheet with units in one column and
values in the other. Modifying a value for any unit automatically
converts and displays that value for all other units. A drop down list
at the top lets you select quantities like length, area, pressure etc.

The whole thing is configured by a user customisable .ini file with
sections like

[Temperature]
K = x, x, f
C = x - 272.15, x + 272.15, f
F = ((x - 272.15) * 9 / 5) + 32, ((x - 32) * 5 / 9) + 272.15, f

[Energy]
Joules = x, x, f
kgm = x / 9.80665, x * 9.80665, f
lbft = x * 1.355818 + 1, x / 1.355818, f

Holy Cow! That's the most complicated method of F to C that I've ever
seen. Try this one. I was told about it about almost 20 yeara ago.

F + 40 / 1.8 - 40 = C
C + 40 X 1.8 - 40 = F

Perform them in the order indicated. I don't recall the "Agebraic rule"
of whether X & / are performed first or if + & - are performed first and
that rule might screw it up, as shown. I should have paid more attention
in math class.

buck
----------------------

Uh, those are silly, and wrong.

40 * 1.8 = 40 + 32, so C + 40 * 1.8 -40 = C + (40 + 32 - 40),
which is stupid.

Just use F = C * 9/5 + 32 and C = (F -32) * 5/9

And by the way, parens first then mult/div, then add/sub.

-Steve
--
-Steve Walz rstevew@armory.com ftp://ftp.armory.com/pub/user/rstevew
Electronics Site!! 1000's of Files and Dirs!! With Schematics Galore!!
http://www.armory.com/~rstevew or http://www.armory.com/~rstevew/Public

Robert C Monsen · Sep 29, 2004

"Watson A.Name - "Watt Sun, the Dark Remover"" <NOSPAM@dslextreme.com>
wrote in message news:10afa9k7lib1362@corp.supernews.com...

"maxfoo" <maxfooHeadFromButt@punkass.com> wrote in message
news:u17ca01q5r19uik13as30o30nnetj0t453@4ax.com...
On Sat, 15 May 2004 08:17:47 GMT, B Thomas
thomasb@math.ohio-state.edu> wrote:

Hi,
Is there any utility to convert units from one to another?
sincerely
b thomas

This is my favorite one...

Convert is an easy to use unit conversion program that will
convert
the most
popular units of distance, temperature, volume, time, speed, mass,
power,
density, pressure, energy and many others, including the ability
to
create
custom conversions!

http://www.joshmadison.com/software/convert/

Even furlongs per fortnight, and attoparsecs?? ;-)

http://www.google.com/search?hl=en&lr=&ie=UTF-8&q=1ft+in+attoparsecs

http://www.google.com/search?hl=en&lr=&ie=UTF-8&q=100+mph+in+furlongs+per+fortnight

I really like Google... Although it doesn't seem to like Gs or Ms...

Regards,
Bob Monsen

buck rojerz · Sep 29, 2004

"Bill Garber" <willy46pa@comcast DOT net> wrote in
news:b6qdnd8ghol7njrdRVn-sA@comcast.com:

"buck rojerz" <inorbit@outerspace.org> wrote in message
news:Xns94EADFC309243ou812@216.168.3.44...
: nospam <nospam@nospam.invalid> wrote in
:
:
: Holy Cow! That's the most complicated method of F to C that
I've ever
: seen. Try this one. I was told about it about almost 20 yeara
ago.
:
: F + 40 / 1.8 - 40 = C
: C + 40 X 1.8 - 40 = F
:
: Perform them in the order indicated. I don't recall the
"Agebraic rule"
: of whether X & / are performed first or if + & - are performed
first and
: that rule might screw it up, as shown. I should have paid more
attention
: in math class.
:
: buck

The rule is MADS, multiply, add, divide, subtract.
This only applies to figures that are not enclosed
in brackets or parentheses.

Thanks much, Bill. After posting this I ran it through my sci.
calculator and it failed(no surprise) as it is written, because of
"MADS", no doubt. I appreciate your help.
Thanks again

buck

Bill @ GarberStreet Enterprizez };-)
Web Site - http://garberstreet.netfirms.com
Email - willy46pa @ comcast DOT net
Change DOT to a dot to contact me

---
This email ain't infected, dude!

Checked by AVG anti-virus system (http://www.grisoft.com).
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buck rojerz · Sep 29, 2004

Chuck Harris <cfharris@erols.com> wrote in news:40a7654f$0$3041
$61fed72c@news.rcn.com:

Bill Garber wrote:

The rule is MADS, multiply, add, divide, subtract.
This only applies to figures that are not enclosed
in brackets or parentheses.

No it isn't!

For common arithmetic:

M>y <D>ear <A>unt <S>ally
Multiply, Divide, Add, Subtract.

-Chuck

Ok... Thanks to you as well, Chuck.

buck

buck rojerz · Sep 29, 2004

"Bill Garber" <willy46pa@comcast DOT net> wrote in
news:dKCdnbMW9u7hjzrdRVn-vw@comcast.com:

"Rich Grise" <null@example.net> wrote in message
news:4EDpc.130479$G_.76119@nwrddc02.gnilink.net...
: "buck rojerz" <inorbit@outerspace.org> wrote in message
: news:Xns94EADFC309243ou812@216.168.3.44...
:
: > Holy Cow! That's the most complicated method of F to C that
I've ever
: > seen. Try this one. I was told about it about almost 20
yeara ago.
:
: > F + 40 / 1.8 - 40 = C
: > C + 40 X 1.8 - 40 = F
:
: > Perform them in the order indicated. I don't recall the
"Agebraic rule"
: > of whether X & / are performed first or if + & - are
performed first and
: > that rule might screw it up, as shown. I should have paid
more attention
: > in math class.
:
: (F - 32) C
: -------- = ---
: (212 - 32) 100
:
: Cheers!
: Rich

After a quick Google search, here are the correct
formulae for converting Farenheit to Celsius and
back.

Celsius = (Fahrenheit - 32) * 5/9
Fahrenheit = Celsius * 9/5 + 32

Bill @ GarberStreet Enterprizez };-)
Web Site - http://garberstreet.netfirms.com
Email - willy46pa @ comcast DOT net
Change DOT to a dot to contact me

This is also true. This is the one I recall from school. I suppose
which ever road one chooses, if the answer is correct, the formulae is
true.

I am certainly no mathematician.(I may not even spell very well)

Thanks
buck

---
This email ain't infected, dude!

Checked by AVG anti-virus system (http://www.grisoft.com).
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Bill Garber · Sep 29, 2004

"buck rojerz" <inorbit@outerspace.org> wrote in message
news:Xns94EBCBB8329F7ou812@216.168.3.44...
: "Bill Garber" <willy46pa@comcast DOT net> wrote in
: news:dKCdnbMW9u7hjzrdRVn-vw@comcast.com:
:
: > "Rich Grise" <null@example.net> wrote in message
: > news:4EDpc.130479$G_.76119@nwrddc02.gnilink.net...
: >: "buck rojerz" <inorbit@outerspace.org> wrote in message
: >: news:Xns94EADFC309243ou812@216.168.3.44...
: >:
: >: > Holy Cow! That's the most complicated method of F to C
that
: > I've ever
: >: > seen. Try this one. I was told about it about almost 20
: > yeara ago.
: >: >
: >: > F + 40 / 1.8 - 40 = C
: >: > C + 40 X 1.8 - 40 = F
: >: >
: >: > Perform them in the order indicated. I don't recall the
: > "Agebraic rule"
: >: > of whether X & / are performed first or if + & - are
: > performed first and
: >: > that rule might screw it up, as shown. I should have paid
: > more attention
: >: > in math class.
: >:
: >: (F - 32) C
: >: -------- = ---
: >: (212 - 32) 100
: >:
: >: Cheers!
: >: Rich
: >
: > After a quick Google search, here are the correct
: > formulae for converting Farenheit to Celsius and
: > back.
: >
: > Celsius = (Fahrenheit - 32) * 5/9
: > Fahrenheit = Celsius * 9/5 + 32
: >
: > Bill @ GarberStreet Enterprizez };-)
: > Web Site - http://garberstreet.netfirms.com
: > Email - willy46pa @ comcast DOT net
: > Change DOT to a dot to contact me
: >
:
: This is also true. This is the one I recall from school. I
suppose
: which ever road one chooses, if the answer is correct, the
formulae is
: true.

:
: I am certainly no mathematician.(I may not even spell very
well)
:
: Thanks
: buck

There was a time long ago that I could calculate where
a certain star would be in years to come, and now, I can
barely balance my checking account. Thank GOD for online
banking or I'd be totally lost. 8o)

Bill @ GarberStreet Enterprizez };-)
Web Site - http://garberstreet.netfirms.com
Email - willy46pa @ comcast DOT net
Change DOT to a dot to contact me

---
This email ain't infected, dude!

Checked by AVG anti-virus system (http://www.grisoft.com).
Version: 6.0.678 / Virus Database: 440 - Release Date: 5/6/04

buck rojerz · Sep 29, 2004

"R. Steve Walz" <rstevew@armory.com> wrote in
news:40A7BBE2.2A72@armory.com:

buck rojerz wrote:

nospam <nospam@nospam.invalid> wrote in
news:lifca0haposhn178i2pf83d67gjrnpm4is@4ax.com:

maxfoo <maxfooHeadFromButt@punkass.com> wrote:

On Sat, 15 May 2004 08:17:47 GMT, B Thomas
thomasb@math.ohio-state.edu> wrote:

Hi,
Is there any utility to convert units from one to another?
sincerely
b thomas

This is my favorite one...

Convert is an easy to use unit conversion program that will convert
the most popular units of distance, temperature, volume, time,
speed, mass, power, density, pressure, energy and many others,
including the ability to create custom conversions!

http://www.joshmadison.com/software/convert/

I'm sure there are lots of others and started to write one myself.

Is there much interest in these utilities? Should I carry on?

My design is like a 2 column spread sheet with units in one column
and values in the other. Modifying a value for any unit
automatically converts and displays that value for all other units.
A drop down list at the top lets you select quantities like length,
area, pressure etc.

The whole thing is configured by a user customisable .ini file with
sections like

[Temperature]
K = x, x, f
C = x - 272.15, x + 272.15, f
F = ((x - 272.15) * 9 / 5) + 32, ((x - 32) * 5 / 9) + 272.15, f

[Energy]
Joules = x, x, f
kgm = x / 9.80665, x * 9.80665, f
lbft = x * 1.355818 + 1, x / 1.355818, f

Holy Cow! That's the most complicated method of F to C that I've
ever seen. Try this one. I was told about it about almost 20 yeara
ago.

F + 40 / 1.8 - 40 = C
C + 40 X 1.8 - 40 = F

Perform them in the order indicated. I don't recall the "Agebraic
rule" of whether X & / are performed first or if + & - are performed
first and that rule might screw it up, as shown. I should have paid
more attention in math class.

buck
----------------------
Uh, those are silly, and wrong.

40 * 1.8 = 40 + 32, so C + 40 * 1.8 -40 = C + (40 + 32 - 40),
which is stupid.

Yes, you are correct, IF you perform the string algebraicly as shown.
How ever if you do the calculations individually, it does work. I was
very mistaken to have displayed it in an algebraic form as I did.

(F)75 + 40 = 115

115 / 1.8 = 63.3333

63.3333 - 40 = (C)23.888

See, I should have presented it, in this manner at first. My mistake.
I like this one, because it seems easier to do on a common 4 function
calculator, because you handle each result in turn without having to
remember any numbers or use any parens.

I do appreciate all of the responses, however.

buck

Just use F = C * 9/5 + 32 and C = (F -32) * 5/9

And by the way, parens first then mult/div, then add/sub.

-Steve

Paul Burke · Sep 29, 2004

Tim Auton wrote:

Google does it. Try searching for "8 ounces in grains", or "9 inches
in angstroms", or "10 lb in kg", or...

The litres/gallons conversion only works in US gallons. And everyone
knows that American hats are really only 8 gallon.

Paul Burke

Anthony Fremont · Sep 29, 2004

"Paul Burke" <paul@scazon.com> wrote in message
news:2gridtF5qu1sU1@uni-berlin.de...

Tim Auton wrote:

[unit conversion]

Google does it. Try searching for "8 ounces in grains", or "9 inches
in angstroms", or "10 lb in kg", or...

The litres/gallons conversion only works in US gallons. And everyone
knows that American hats are really only 8 gallon.

I just did a conversion using "45l in imperial gallons" and it seems to
have worked fine.

Spehro Pefhany · Sep 29, 2004

On Mon, 17 May 2004 11:30:14 +0100, the renowned Paul Burke
<paul@scazon.com> wrote:

Tim Auton wrote:

[unit conversion]

Google does it. Try searching for "8 ounces in grains", or "9 inches
in angstroms", or "10 lb in kg", or...

The litres/gallons conversion only works in US gallons. And everyone
knows that American hats are really only 8 gallon.

Paul Burke

You mean the traditional 37.854118-liter hat?

Best regards,
Spehro Pefhany
--
"it's the network..." "The Journey is the reward"
speff@interlog.com Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog Info for designers: http://www.speff.com

Chuck Harris · Sep 29, 2004

Terry Given wrote:

more complete: BEDMAS
Brackets
Exponents
Division
Multiplication
Addition
Subtraction

Terru

I've never seen division given more precedence than
multiplication.

It's easier and clearer to throw in a few brackets and
eliminate all doubt.

-Chuck

Chuck Harris · Sep 29, 2004

Terry Given wrote:

It's easier and clearer to throw in a few brackets and
eliminate all doubt.

-Chuck

M,D are interchangeable, as are A,S. BEDMAS just reads better than BEMDSA
thats all.

you are not wrong about extra brackets though. Especially when mutilating
equations with ascii

Terry

When I first started programming in C, I followed the conventions of
the programmers who wrote Unix Edition 6. They liked to show off how
tricky they were and wrote in the most terse way possible. Somewhere
along the journey, I got tired of having to puzzle out my old code, and
started writing code that was easy to understand. The same assembly
code comes out of the compiler either way... well, today's compilers
anyway.

-Chuck

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