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rorob

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set atomss [atomselect top "resname FMA1 MMA2 MMA3 and z<0"]
set indexss [$atomss list]
set masscenterss [measure center $atomss]
foreach i $indexss {
        lappend atomcenters [measure center [atomselect top "index $i"]]
}
#puts $atomcenters
foreach cccc $atomcenters {
#lappend rg0 [veclength2 [vecsub $masscenterss $cccc]]
        lappend rg0 [expr [veclength2 [vecsub $cccc $masscenterss]]**2]
}
#puts $rg0
set lengthss [llength $rg0]
set amount 0
for {set numm 0} {$numm < $lengthss} {incr numm} {
        set amount [expr [lindex $rg0 $numm]+$amount]
}
puts [ $amount/$lengthss]
unset rg0 atomcenters numm amount

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wujinfanghua

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nk_vigor

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rorob

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3Â¥: Originally posted by nk_vigor at 2013-07-02 15:56:28
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4Â¥2013-07-02 16:26:38
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nk_vigor

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5Â¥2013-07-02 16:58:22
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sciencejoy

гæ (ÖøÃûдÊÖ)

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4Â¥: Originally posted by rorob at 2013-07-02 16:26:38
ÊéÉÏÒ»°ã˵µÄ¶¼ÊÇÀíÏëÁ´£¬¶ÔӦÿ¸öÁ£×ÓµÄÖÊÁ¿¶¼ÊÇÏàµÈµÄ£¬¶øÎÒ×öµÄÌåϵ£¬Á£×ÓµÄÖÊÁ¿ÊDz»Í¬µÄ£¬ÎÒ²»ÖªµÀÓÐûÈËרÃÅͳ¼Æ¹ýijÖÖ¾ÛºÏÎïij¸ö¾ÛºÏ¶ÈÔÚÒ»¶¨Î¶ȣ¬ÈܼÁ»òÈÛÌåÖеľù·½»Ø×ª°ë¾¶µÄÊýÖµ£¬»¹ÓÐÕâ¸öÖµµÄµ¥Î»ÊÇʲ ...

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