test

Discussion in 'Off-Topic' started by PRS, Mar 15, 2010.

  1. PRS

    Thread Starter Well-Known Member

    Aug 24, 2008
    989
    35
    \(frac{a + b}{c}\)

    Why doesn't this work, anyone?
     
  2. t_n_k

    AAC Fanatic!

    Mar 6, 2009
    5,448
    782
    Try this .....

    insert \frac{a+b}{c}

    between the "\frac{a+b}{c}" alt="" delimiters - you need the "/" in front of the second "tex" inside the terminating square brackets.

    And you then get what you wanted ...

    \frac{a+b}{c}" />
     
  3. PRS

    Thread Starter Well-Known Member

    Aug 24, 2008
    989
    35
    \frac{a + b}{c}\

    Thank you, very much!
     
    Last edited: Mar 15, 2010
  4. Wendy

    Moderator

    Mar 24, 2008
    20,766
    2,536
    \frac{a + b}{c}

    [​IMG]

    Hope it helps. Note the slash is backwards.

    Something I've found odd doing this for the book, the finished product is actually an illustration. You can copy and paste it as such.
     
    Last edited: Mar 15, 2010
  5. PRS

    Thread Starter Well-Known Member

    Aug 24, 2008
    989
    35
    And I thank you, too, Bill. Little things were throwing me off. Now I think I'm ready to learn this thing. Is it okay if I practice on this board or is there another place reserved for practice?
     
  6. Wendy

    Moderator

    Mar 24, 2008
    20,766
    2,536
    This is your thread. Do with it as you choose.
     
  7. PRS

    Thread Starter Well-Known Member

    Aug 24, 2008
    989
    35
    Thanks.(nt)
     
  8. PRS

    Thread Starter Well-Known Member

    Aug 24, 2008
    989
    35
    This should be V1 with 1 subscripted:

    V_1

    Excellent. Now what about Vout?

    V_out

    Nope, trying again...

    V_{out}

    That woiked!

    Now howabout a superscript such as 2^2 = 4?

    2^2 = 4

    Excellent. What about 2^10 = 1024?

    2^10 = 1024

    Nope, we need brackets...

    2^{10} = 1024

    Ok, the point about more than two digits in an operand needing brackets is well taken. Here's tp printing sqrt{144} = 12 and getting it right the first time!

    sqrt{144} = 12

    Yahoo! I'm on my way! Now for something a little more complicated. But we'll do that tomorrow. ;)
     
    Last edited: Mar 16, 2010
  9. Wendy

    Moderator

    Mar 24, 2008
    20,766
    2,536
  10. PRS

    Thread Starter Well-Known Member

    Aug 24, 2008
    989
    35
    Awesome, Bill! Thanks! As soon as I get some ink for my printer I'll copy these lists and keep them next to my computer. Gotta mow a few lawns first. ;)
     
  11. PRS

    Thread Starter Well-Known Member

    Aug 24, 2008
    989
    35
    Okay, I just ran into a problem. I tried to write the formula for an RC filter, which is 1/(2*pi*R*C) in the form you would find it in a book and I did this (without the TEX parameters:

    \frac{1}{2piRC}\

    which gives this:

    \frac{1}{2piRC}\

    But I would rather have a nice looking pi. So.... I read up on it and it seems \pi will do the trick....

    Without tex I wrote: \frac{1}{2\piRC}\ the \pi supposedly creating an actual Greek pi....

    \frac{1}{2\piRC}\

    That didn't work. Anyone out there got a suggestion?

    Let's try this: \frac{1}{2\{pi}RC}\

    \frac{1}{2\{pi}RC}\

    Nope.
     
    Last edited: Mar 17, 2010
  12. bertus

    Administrator

    Apr 5, 2008
    15,649
    2,348
  13. PRS

    Thread Starter Well-Known Member

    Aug 24, 2008
    989
    35
    Last edited: Mar 17, 2010
  14. Wendy

    Moderator

    Mar 24, 2008
    20,766
    2,536
    \frac{1}{2\pi RC}\

    [​IMG]

    You have brackets separating your \ and pi.
     
  15. retched

    AAC Fanatic!

    Dec 5, 2009
    5,201
    312
    You need a space after the /pi and the RC
     \frac{1}{2\pi RC}\

    Code ( (Unknown Language)):
    1. that is  \frac{1}{2\pi RC}\
    2.                       ^ notice the space
     
  16. PRS

    Thread Starter Well-Known Member

    Aug 24, 2008
    989
    35
    Thanks. Now I can get on with my lessons. ;)
     
  17. PRS

    Thread Starter Well-Known Member

    Aug 24, 2008
    989
    35
    Thanks again, Bill. If there are fine cryptic points, I'll be sure to find them!
     
  18. PRS

    Thread Starter Well-Known Member

    Aug 24, 2008
    989
    35
    Here is the equation for an RC filter.

    f = \frac{1}{2\pi RC}\
     
  19. PRS

    Thread Starter Well-Known Member

    Aug 24, 2008
    989
    35
    Well, that worked. So let's try other symbols:

    V(t) = cos(\omega t + \phi)

    I forgot the constant Vmax......

    V(t) = V_{max}cos(\omega t + \phi)

    What about sigma used for integration?

    \sigma

    That's the small one. Here's the big one from the symbol menu...

    This is big Ʃ
     
    Last edited: Mar 18, 2010
  20. retched

    AAC Fanatic!

    Dec 5, 2009
    5,201
    312
    I think Paul has a problem....He keeps talking to himself! ;)
     
Loading...