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Subject:

Re: Question on Symmetry Axis Notation Convention

From:

Boaz Shaanan <[log in to unmask]>

Reply-To:

Boaz Shaanan <[log in to unmask]>

Date:

Thu, 14 Jun 2012 20:51:30 +0000

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 Hi, Isn't there a notation 2 subscript 1 superscript x (one on top of the other) for "2-fold screw along x" for example? and likewise for y and z? Boaz Boaz Shaanan, Ph.D. Dept. of Life Sciences Ben-Gurion University of the Negev Beer-Sheva 84105 Israel E-mail: [log in to unmask] Phone: 972-8-647-2220 Skype: boaz.shaanan Fax: 972-8-647-2992 or 972-8-646-1710 ________________________________________ From: CCP4 bulletin board [[log in to unmask]] on behalf of James Stroud [[log in to unmask]] Sent: Thursday, June 14, 2012 10:06 PM To: [log in to unmask] Subject: [ccp4bb] Question on Symmetry Axis Notation Convention Hello All, I would like to discuss symmetry axes, but I'm not sure what the notation convention is. For example, I'd like to say something about a 2(1) along the x-axis, but the phrase "the 2(1) symmetry axis along x" is a bit cumbersome to repeat many times or to put in a table. So I'd like a shorthand, maybe something like "x(2_1)" (where the preceding "_" means that the "1" is subscript. Another way I like is "x_{2(1)}" (where the curly braces mean that all of "2(1)" is subscript). Does anyone know what the convention is or if there is one? Thanks in advance for any help. James

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