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Author Topic: Math blackout  (Read 3431 times)

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Jürg Menzi

  • Swamp Rat
  • Posts: 599
  • Oberegg, Switzerland
Math blackout
« on: January 25, 2006, 12:07:25 PM »
Hi

Seems that I've a hole in my head...
I'm searching the formula (Lisp) to calculate the end tangent of an arc:
Given:
start tangent, arc length and radius



?... :ugly:
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paulmcz

  • Bull Frog
  • Posts: 202
Re: Math blackout
« Reply #1 on: January 25, 2006, 01:29:27 PM »
if
start tangent = st
arc length = l
arc radius - r

isn't it :

(- st (/ l r))  ?
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Kerry

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Re: Math blackout
« Reply #2 on: January 25, 2006, 04:49:31 PM »
Quote from: paulmcz on January 25, 2006, 01:29:27 PM
if
start tangent = st
arc length = l
arc radius - r

isn't it :

(- st (/ l r))  ?

Yes, In Radians
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Jürg Menzi

  • Swamp Rat
  • Posts: 599
  • Oberegg, Switzerland
Re: Math blackout
« Reply #3 on: January 26, 2006, 06:49:50 AM »
You've saved my day... thanks guys!  :-)
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CAB

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Re: Math blackout
« Reply #4 on: January 26, 2006, 09:38:41 AM »
I could have sworn that Luis had posted in this thread.
Was I seeing things? :-o I'm still fighting the flu so I may have been hallucinating.

I was coming back to check out the link when I had some time
and poof, like magic it's gone.  :-(
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Jürg Menzi

  • Swamp Rat
  • Posts: 599
  • Oberegg, Switzerland
Re: Math blackout
« Reply #5 on: January 26, 2006, 09:53:48 AM »
You're right CAB, there was a post from Luis...
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LE

  • Guest
Re: Math blackout
« Reply #6 on: January 26, 2006, 10:00:07 AM »
Yes... and I removed... because I did not provide the answer.... and it was just occupying space....

 :-D

Sorry...
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t-bear

  • Guest
Re: Math blackout
« Reply #7 on: January 26, 2006, 02:17:04 PM »
Luis....
Consider this: although your post did not supply the answer to the particular problem, it migh just be the solution to another problem that another Swamper has been beating his/her head against the wall to solve.  Don't be afraid to leave "wrong answers" here....in the long run, it may very well be the "right answer" for someone else.

Hope you understand that I'm only trying to help...   :wink: ^-^
« Last Edit: January 26, 2006, 05:44:25 PM by Mark Thomas »
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