Facebook Page
Twitter
RSS
+ Reply to Thread
Results 1 to 5 of 5
  1. MHB Master
    MHB Site Helper
    Peter's Avatar
    Status
    Offline
    Join Date
    Jun 2012
    Location
    Hobart, Tasmania
    Posts
    2,864
    Thanks
    2,626 times
    Thanked
    895 times
    Awards
    MHB Model User Award (2018)  

MHB Model User Award (2015)  

MHB Model User Award (Jul-Dec 2013)
    #1
    In a recent post on the Cauchy-Schwarz Inequality I wished to "size" the parentheses adequately in the expression


    $ \displaystyle x = \frac{ \langle x, y \rangle }{ \mid \mid y \mid \mid^2} y + ( x - \frac{ \langle x, y \rangle }{ \mid \mid y \mid \mid^2} y ) $


    ... ... but in order to use \left and \right I need to also use the Latex Code for ( and ) ... but what is the code for a left and right parenthesis ... ?


    Hope someone can help ...

    Peter

  2. # ADS
    Circuit advertisement
    Join Date
    Always
    Location
    Advertising world
    Posts
    Many
     

  3. Perseverance
    MHB Global Moderator
    MHB Math Helper
    Greg's Avatar
    Status
    Offline
    Join Date
    Feb 2013
    Location
    London Ontario, Canada - The Forest City
    Posts
    1,379
    Thanks
    6,420 times
    Thanked
    2,746 times
    Thank/Post
    1.991
    #2
    \left(...\right)

    Example:

    $$\left( x - \frac{ \langle x, y \rangle }{ \mid \mid y \mid \mid^2} y \right)$$

    As a side note, for a single sized parenthesis use \left(...\right. or \left. ...)\right)

    Examples:

    $$\left(\frac12\right.$$

    $$\left.\frac12\right)$$

  4. MHB Master
    MHB Site Helper
    Peter's Avatar
    Status
    Offline
    Join Date
    Jun 2012
    Location
    Hobart, Tasmania
    Posts
    2,864
    Thanks
    2,626 times
    Thanked
    895 times
    Awards
    MHB Model User Award (2018)  

MHB Model User Award (2015)  

MHB Model User Award (Jul-Dec 2013)
    #3 Thread Author
    Quote Originally Posted by greg1313 View Post
    \left(...\right)

    Example:

    $$\left( x - \frac{ \langle x, y \rangle }{ \mid \mid y \mid \mid^2} y \right)$$

    As a side note, for a single sized parenthesis use \left(...\right. or \left. ...)\right)

    Examples:

    $$\left(\frac12\right.$$

    $$\left.\frac12\right)$$


    Thanks for your help greg1313 ...

    It is much appreciated ...

    Peter

  5. MHB Craftsman
    MHB Math Helper

    Status
    Offline
    Join Date
    Mar 2016
    Location
    Melbourne Australia
    Posts
    231
    Thanks
    503 times
    Thanked
    407 times
    Thank/Post
    1.762
    Blog Entries
    1
    Trophies
    4 Highscores
    Awards
    MHB Model User Award (2017)
    #4
    Quote Originally Posted by Peter View Post
    Thanks for your help greg1313 ...

    It is much appreciated ...

    Peter
    Also, for curly braces: \left\lbrace .. \right\rbrace

    e.g. $ \left\lbrace\dfrac{\dfrac{a}{b}}{\dfrac{a}{b}} \right\rbrace$

  6. MHB Seeker
    MHB Global Moderator
    MHB Math Scholar
    MHB Coder
    Klaas van Aarsen's Avatar
    Status
    Offline
    Join Date
    Mar 2012
    Location
    Leiden
    Posts
    8,410
    Thanks
    5,440 times
    Thanked
    14,625 times
    Thank/Post
    1.739
    Awards
    MHB Pre-University Math Award (2018)  

MHB Model Helper Award (2017)  

MHB Best Ideas (2017)  

MHB Analysis Award (2017)  

MHB Calculus Award (2017)
    #5
    Alternatively, we can use
    \Big
    and
    \big
    for parentheses that wouldn't otherwise scale:
    $$\Big( \cos x + \cos \big( x+(k+1)\pi \big) \Big)$$
    Latex Code:
    \Big( \cos x + \cos \big( x+(k+1)\pi \big) \Big)


    We can also use
    \Big
    and
    \big
    for a single bracket $\Big]$ that would also otherwise be too small:
    $$\int_0^{2\pi} \cos x\,dx = \sin x \Big|_0^{2\pi}$$
    Latex Code:
    \int_0^{2\pi} \cos x\,dx = \sin x \Big|_0^{2\pi}


    And there's more variants:
    $$\big\{ \Big\{ \bigg\{ \Bigg\{$$
    Latex Code:
    \big\{ \Big\{ \bigg\{ \Bigg\{

Similar Threads

  1. Replies: 0
    Last Post: November 13th, 2017, 17:10
  2. Replies: 0
    Last Post: November 13th, 2017, 12:13
  3. Latex code for the functor Hom_R( _ , X)
    By Peter in forum Math Formulas (MathJax)
    Replies: 3
    Last Post: December 4th, 2014, 22:45
  4. Latex code for the class SE of short exact sequences in Mod_R
    By Peter in forum Math Formulas (MathJax)
    Replies: 1
    Last Post: November 30th, 2014, 13:07
  5. Way to see Latex source code
    By Jameson in forum Math Formulas (MathJax)
    Replies: 4
    Last Post: February 7th, 2012, 01:17

Tags for this Thread

Posting Permissions

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