[jhb_airlines] Re: Gross Weight

  • From: gwinsk@xxxxxxx
  • To: jhb_airlines@xxxxxxxxxxxxx
  • Date: Sun, 19 Dec 2004 19:36:36 -0000

I feel a headache coming on.
Who was the clot who asked about a weight gauge?

Gerry Winskill
gwinsk@xxxxxxx




On 19 Dec 2004 at 19:31, Bones wrote:

> Funny you should say that.  If you download the XMLGAU01.zip file it
> has a further zip inside called RPN.zip which is the old HP Calculator
> intro to the subject! A couple of the first desktop calculators I used
> worked on the same process. Number first, action after so 6-3 was
> actually input as 6 + 3 - =  (I bet that lot gets scrambled by the
> Freelist server!)
> 
> I can work at that level but when you get the following I lose it
> completely:
> 
> <Value>(A:Autopilot mach hold, bool) if{ 1 (&gt;L:Mach-IAS select,
> bool) } (A:Autopilot airspeed hold, bool) if{ 0 (&gt;L:Mach-IAS
> select, bool) } (L:Mach-IAS select, bool) if{ 9 } els{ (A:Autopilot
> airspeed hold var, knots)  s1 100 / 10 % flr l1 100 % 99 &gt; if{ l1
> 10 % 9 - + } }</Value> (boeing747-400\Autopilot IAS-Mach Window.xml
> line 14)
> 
> bones
> 
> -----Original Message-----
> From: jhb_airlines-bounce@xxxxxxxxxxxxx
> [mailto:jhb_airlines-bounce@xxxxxxxxxxxxx] On Behalf Of
> FrankTurley@xxxxxxx Sent: 19 December 2004 18:07 To:
> jhb_airlines@xxxxxxxxxxxxx Subject: [jhb_airlines] Re: Gross Weight
> 
> 
> 
> In a message dated 19/12/2004 17:40:04 GMT Standard Time,
> bones@xxxxxxx writes: explaining Reverse Polish Notation that is used
> for the gauge  operation. = Way beyond me
> 
> 
> Bones,
> 
> Thanks for that, I'll make a start looking at some XML files.
> 
> I have used Reverse Polish Notation, I found it first on HP
> Calculators back in the seventies. I once heard it described using an
> analogy of the old sprung plate racks in the canteen, you push things
> down onto the stack and they pop up in the reverse order you pushed
> them down. The reason for it is that you can easily write a program to
> resolve RPN formulae, much easier that to solve a regular formula, you
> just continually parse from the top of the stack downwards until it is
> exhausted.
> 
> Mind you, that was a long time ago..........
> 
> Frank T.
> 
> 
> 
> 
> 
> 
> 



Other related posts: