Advertise on Bikeforums.net



User Tag List

Page 1 of 2 12 LastLast
Results 1 to 25 of 32
  1. #1
    la vache fantôme phantomcow2's Avatar
    Join Date
    Aug 2004
    Location
    NH
    Posts
    6,266
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Is this logarithm equation properly condensed?

    ln(e+1) - ln(e^2) + ln(e) =

    ln(e*1) = ln(e)

    ln(e)/ln(e^2)(e) Divide because of the subtraction.

    but ln(e) = 1, and ln e^2 * e = e^3. Lne^3 = 3.

    Answer = 1/3
    C://dos
    C://dos.run
    run.dos.run

  2. #2
    Ogr8nwmypstmksnosnse pgoat's Avatar
    Join Date
    May 2005
    My Bikes
    1986 Trek 500, 2003 Orbea Team Euskaltel, 2005 Cannondale R1000
    Posts
    2,785
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    if you foo egg heads are gonna go at it tonight don't just stand there - pls count us some votes or something!
    Quote Originally Posted by jsharr View Post
    People whose sig line does not include a jsharr quote annoy me.

  3. #3
    It is what it is... Minesbroken's Avatar
    Join Date
    Aug 2005
    Location
    Long Island NY
    My Bikes
    Trek 6500 w/ stuff
    Posts
    806
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    no...?
    sign here so we can do stuff to your stuff...

    myspace
    myplace
    my bike

  4. #4
    T-Shirt Guy ehidle's Avatar
    Join Date
    Jul 2008
    Location
    Lansdale, PA
    My Bikes
    2005 Fuji Team Issue, 2007 Fuji SL-1
    Posts
    464
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I am working on another problem right now that is far more pressing. I am trying to take a pile of about 150 red poker chips and turn them into more than 270, all using only the will of my mind...

    It's proving to be difficult.

    Yellow + Blue Jerseys!

    Get your Cranky T-Shirt!
    Men's
    and Women's designs available

  5. #5
    Can't yodel
    Join Date
    Sep 2008
    Posts
    0
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I wrote an amusing solution to Phantom's question in the margin of Bike Forums. But now I'm feeling...argh...[thud]

  6. #6
    Ogr8nwmypstmksnosnse pgoat's Avatar
    Join Date
    May 2005
    My Bikes
    1986 Trek 500, 2003 Orbea Team Euskaltel, 2005 Cannondale R1000
    Posts
    2,785
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    well, so long as you are using your time productively

    seriously, you guys with your physics and organic chem threads are making me feel as stupid as I really am.

    I am thinking about taking some night classes in math/science. I'm one of those humanities people, so it'll be like teaching Gary Coleman to slam dunk. But life needs a challenge, huh?
    Quote Originally Posted by jsharr View Post
    People whose sig line does not include a jsharr quote annoy me.

  7. #7
    L T X B O M P F A N S R apricissimus's Avatar
    Join Date
    Jun 2008
    Location
    Melrose, MA
    My Bikes
    Bianchi Volpe, Bianchi San Jose, Redline 925
    Posts
    2,326
    Mentioned
    3 Post(s)
    Tagged
    0 Thread(s)
    I'm having a hard time understanding what you're doing...

    Going kinda along your lines:

    ln(e + 1) - ln(e^2) + ln(e) =
    ln((e + 1)/e^2) + ln(e) =
    ln(((e + 1)/e^2)*e) =
    ln((e + 1)/e)=
    ln(e + 1) - ln(e) =
    ln(e + 1) - 1


    Or more simply:


    ln(e + 1) - ln(e^2) + ln(e) =
    ln(e + 1) - 2*ln(e) + ln(e) =
    ln(e + 1) - 2*1 + 1=
    ln(e + 1) - 1

  8. #8
    Look! My Spine! RubenX's Avatar
    Join Date
    Apr 2008
    Location
    Winter Springs, FL
    Posts
    619
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    and there's why this electronic engineer wannabe settled for computer analyst nighshifter...

  9. #9
    Senior Member MrCrassic's Avatar
    Join Date
    Jun 2007
    Location
    Brooklyn, NY
    My Bikes
    2008 Giant OCR1 (with panda bear on the back!)
    Posts
    3,648
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)


    Remember that:



    and

    Ride more.

    Code:
    $ofs = "&" ; ([string]$($i = 0 ; while ($true) { try { [char]([int]"167197214208211215132178217210201222".substring($i,3) - 100) ; $i =
     $i+3 > catch { break >>)).replace('&','') ; $ofs=" " # Replace right angles with right curly braces

  10. #10
    Senior Member MrCrassic's Avatar
    Join Date
    Jun 2007
    Location
    Brooklyn, NY
    My Bikes
    2008 Giant OCR1 (with panda bear on the back!)
    Posts
    3,648
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by phantomcow2 View Post
    ln(e+1) - ln(e^2) + ln(e) =

    ln(e*1) = ln(e)

    ln(e)/ln(e^2)(e) Divide because of the subtraction.

    but ln(e) = 1, and ln e^2 * e = e^3. Lne^3 = 3.

    Answer = 1/3
    Attempting to go by your logic, I think where you may have gone wrong was assuming that this was an equation, i.e. you assumed that there was something that it related to. The problem was asking you to reduce the expression, so there was nothing to move that ln(e) statement to.
    Ride more.

    Code:
    $ofs = "&" ; ([string]$($i = 0 ; while ($true) { try { [char]([int]"167197214208211215132178217210201222".substring($i,3) - 100) ; $i =
     $i+3 > catch { break >>)).replace('&','') ; $ofs=" " # Replace right angles with right curly braces

  11. #11
    Ogr8nwmypstmksnosnse pgoat's Avatar
    Join Date
    May 2005
    My Bikes
    1986 Trek 500, 2003 Orbea Team Euskaltel, 2005 Cannondale R1000
    Posts
    2,785
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    oh yeah, I remember now
    Quote Originally Posted by jsharr View Post
    People whose sig line does not include a jsharr quote annoy me.

  12. #12
    BOFH SegFault's Avatar
    Join Date
    May 2008
    Location
    Twin Cities, Minnesota, USA
    My Bikes
    Many.
    Posts
    46
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Stay away from condensed expressions, dude. I only use freshly-squeezed expressions.

  13. #13
    Senior Member MrCrassic's Avatar
    Join Date
    Jun 2007
    Location
    Brooklyn, NY
    My Bikes
    2008 Giant OCR1 (with panda bear on the back!)
    Posts
    3,648
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Make sure it doesn't have concentraet.
    Ride more.

    Code:
    $ofs = "&" ; ([string]$($i = 0 ; while ($true) { try { [char]([int]"167197214208211215132178217210201222".substring($i,3) - 100) ; $i =
     $i+3 > catch { break >>)).replace('&','') ; $ofs=" " # Replace right angles with right curly braces

  14. #14
    L T X B O M P F A N S R apricissimus's Avatar
    Join Date
    Jun 2008
    Location
    Melrose, MA
    My Bikes
    Bianchi Volpe, Bianchi San Jose, Redline 925
    Posts
    2,326
    Mentioned
    3 Post(s)
    Tagged
    0 Thread(s)
    No, you need to concentrate in order to solve these problems.

  15. #15
    Domestic Domestique UnsafeAlpine's Avatar
    Join Date
    Dec 2007
    Location
    Michigan
    My Bikes
    Brand New Old Catamount! Schwinn Homegrown, Specialized FSR, Salsa Vaya, Salsa Chile Con Crosso
    Posts
    1,736
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by MrCrassic View Post


    Remember that:



    and

    ln e^a = a
    Last edited by MrCrassic; 11-05-08 at 10:24 AM.

  16. #16
    Ogr8nwmypstmksnosnse pgoat's Avatar
    Join Date
    May 2005
    My Bikes
    1986 Trek 500, 2003 Orbea Team Euskaltel, 2005 Cannondale R1000
    Posts
    2,785
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    E = sightsee MC
    Quote Originally Posted by jsharr View Post
    People whose sig line does not include a jsharr quote annoy me.

  17. #17
    Senior Member MrCrassic's Avatar
    Join Date
    Jun 2007
    Location
    Brooklyn, NY
    My Bikes
    2008 Giant OCR1 (with panda bear on the back!)
    Posts
    3,648
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by UnsafeAlpine View Post
    ln e^a = a
    That's true, but I was demonstrating the principle.
    Ride more.

    Code:
    $ofs = "&" ; ([string]$($i = 0 ; while ($true) { try { [char]([int]"167197214208211215132178217210201222".substring($i,3) - 100) ; $i =
     $i+3 > catch { break >>)).replace('&','') ; $ofs=" " # Replace right angles with right curly braces

  18. #18
    Domestic Domestique UnsafeAlpine's Avatar
    Join Date
    Dec 2007
    Location
    Michigan
    My Bikes
    Brand New Old Catamount! Schwinn Homegrown, Specialized FSR, Salsa Vaya, Salsa Chile Con Crosso
    Posts
    1,736
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by MrCrassic View Post
    That's true, but I was demonstrating the principle.
    yeah, I got it, I just like the shorthand version better. Much less messy...

  19. #19
    Senior Member MrCrassic's Avatar
    Join Date
    Jun 2007
    Location
    Brooklyn, NY
    My Bikes
    2008 Giant OCR1 (with panda bear on the back!)
    Posts
    3,648
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Ride more.

    Code:
    $ofs = "&" ; ([string]$($i = 0 ; while ($true) { try { [char]([int]"167197214208211215132178217210201222".substring($i,3) - 100) ; $i =
     $i+3 > catch { break >>)).replace('&','') ; $ofs=" " # Replace right angles with right curly braces

  20. #20
    On my TARDIScycle! KingTermite's Avatar
    Join Date
    Jun 2005
    Location
    Eastside Seattlite Termite Mound
    My Bikes
    Trek 520, Trek Navigator 300, Peugeot Versailles PE10DE
    Posts
    3,928
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Thank John Napier you have them as a tool in the first place.
    Quote Originally Posted by coffeecake View Post
    - it's pretty well established that Hitler was an *******.

  21. #21
    la vache fantôme phantomcow2's Avatar
    Join Date
    Aug 2004
    Location
    NH
    Posts
    6,266
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Thanks to those who contributed with helpful comments.
    C://dos
    C://dos.run
    run.dos.run

  22. #22
    Ogr8nwmypstmksnosnse pgoat's Avatar
    Join Date
    May 2005
    My Bikes
    1986 Trek 500, 2003 Orbea Team Euskaltel, 2005 Cannondale R1000
    Posts
    2,785
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    you're welcome
    Quote Originally Posted by jsharr View Post
    People whose sig line does not include a jsharr quote annoy me.

  23. #23
    Senior Member MrCrassic's Avatar
    Join Date
    Jun 2007
    Location
    Brooklyn, NY
    My Bikes
    2008 Giant OCR1 (with panda bear on the back!)
    Posts
    3,648
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Ride more.

    Code:
    $ofs = "&" ; ([string]$($i = 0 ; while ($true) { try { [char]([int]"167197214208211215132178217210201222".substring($i,3) - 100) ; $i =
     $i+3 > catch { break >>)).replace('&','') ; $ofs=" " # Replace right angles with right curly braces

  24. #24
    L T X B O M P F A N S R apricissimus's Avatar
    Join Date
    Jun 2008
    Location
    Melrose, MA
    My Bikes
    Bianchi Volpe, Bianchi San Jose, Redline 925
    Posts
    2,326
    Mentioned
    3 Post(s)
    Tagged
    0 Thread(s)
    We need more of these in schools:






    And fewer of these:


  25. #25
    BOFH SegFault's Avatar
    Join Date
    May 2008
    Location
    Twin Cities, Minnesota, USA
    My Bikes
    Many.
    Posts
    46
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by apricissimus View Post
    We need more of these in schools:

    <snipped image>

    And fewer of these:

    <snipped image>
    Agreed.

    When I was in high school, my physics teacher had a supply of slide rules plus instruction booklets that were handed out to any student who forgot their calculators (this was when all the cool kids had TI-86s) on exam days. It then became a bit of a machismo contest to see who could get the best marks using the slide rules. By the end of the course, we realized that the graphing calculators aren't nearly as essential as we once thought.

Page 1 of 2 12 LastLast

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •