User:Tom Allen/ta/AddendumX06P02

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... the contractions of the tensor R ...



NB. ... execute (ijx) ...

   pU0=:,:@(1.5 1.1 2 8 1 1 2 2 0.5"_)

   xCpts=:_ 0.7 1.3 51,_ 0.4p1 0.6p1 51,_ 0 2p1 51,:_ 0 2p1 51"_


NB. ... the divergence of space and time in a gravitational field ...

NB. ... '+' ...

   ((2^_44)qtsz]) (pU0([(mcn +/"1@((<1 2)|:])@(*/)"2 1 mcn +/"1@((<0 1)|:])         @:(+/"1)@((<1 2)|:])@(*/)"2 3 +/"1@((<0 3)|:])"5@R)yRef@hkyX06B)]) ((0;1"_)zfyc"1@pTRandom xCpts)''
_16.135 132.839 0.803023 5.1239

NB. ... '-' ...

   ((2^_44)qtsz]) (pU0([(mcn +/"1@((<1 2)|:])@(*/)"2 1 mcn +/"1@((<0 1)|:])         @:(+/"1)@((<1 2)|:])@(*/)"2 3 +/"1@((<0 2)|:])"5@R)yRef@hkyX06B)]) ((0;1"_)zfyc"1@pTRandom xCpts)''
16.135 _132.839 _0.803023 _5.1239


NB. ... contractions of R which are not used ...

   ((2^_44)qtsz]) (pU0([(mcn +/"1@((<1 2)|:])@(*/)"2 1 mcn +/"1@((<0 2)|:])         @:(+/"1)@((<1 2)|:])@(*/)"2 3 +/"1@((<0 1)|:])"5@R)yRef@hkyX06B)]) ((0;1"_)zfyc"1@pTRandom xCpts)''
_14.9749 _0.0971335 0.239952 0.209698

   ((2^_44)qtsz]) (pU0([(mcn +/"1@((<1 2)|:])@(*/)"2 1 mcn +/"1@((<1 2)|:])@(0 2|:])@:(+/"1)@((<1 3)|:])@(*/)"2 3 +/"1@((<0 1)|:])"5@R)yRef@hkyX06B)]) ((0;1"_)zfyc"1@pTRandom xCpts)''
14.9749 0.0971335 _0.239952 _0.209698

   ((2^_44)qtsz]) (pU0([(mcn +/"1@((<1 2)|:])@(*/)"2 1 mcn +/"1@((<0 1)|:])         @:(+/"1)@((<1 2)|:])@(*/)"2 3 +/"1@((<0 1)|:])"5@R)yRef@hkyX06B)]) ((0;1"_)zfyc"1@pTRandom xCpts)''
0 0 0 0

   ((2^_44)qtsz]) (pU0([(mcn +/"1@((<1 2)|:])@(*/)"2 1 mcn +/"1@((<0 1)|:])@(0 2|:])@:(+/"1)@((<1 3)|:])@(*/)"2 3 +/"1@((<0 1)|:])"5@R)yRef@hkyX06B)]) ((0;1"_)zfyc"1@pTRandom xCpts)''
0 0 0 0

   ((2^_44)qtsz]) (pU0([(mcn +/"1@((<1 2)|:])@(*/)"2 1 mcn +/"1@((<0 1)|:])@(0 2|:])@:(+/"1)@((<1 3)|:])@(*/)"2 3 +/"1@((<0 3)|:])"5@R)yRef@hkyX06B)]) ((0;1"_)zfyc"1@pTRandom xCpts)''
_16.135 132.839 0.803023 5.1239

   ((2^_44)qtsz]) (pU0([(mcn +/"1@((<1 2)|:])@(*/)"2 1 mcn +/"1@((<0 1)|:])@(0 2|:])@:(+/"1)@((<1 3)|:])@(*/)"2 3 +/"1@((<0 2)|:])"5@R)yRef@hkyX06B)]) ((0;1"_)zfyc"1@pTRandom xCpts)''
16.135 _132.839 _0.803023 _5.1239



... the gravitational field ...



NB. ... execute (ijx) ...

NB. ... for this model (AddendumT03Z05) ...

   pU0=:,:@(1.5 1.1 2 8 1 1 2 2 0.5"_)

   xCpts=:_ 0.7 1.3 51,_ 0.4p1 0.6p1 51,_ 0 2p1 51,:_ 0 2p1 51"_

NB. ... the verb E1cn (contravariant) has been used for the divergence of space and time ...

   ((2^_44)qtsz])  (pU0([E1cn yRef@hkyX06B)]) ((0;1"_)zfyc"1@pTRandom xCpts)''
_16.135 132.839 0.803023 5.1239

NB. ... the verb E1cv (covariant) could be a possible alternative ...
NB. ... (this has the effect of changing the sign of the divergence of time) ...

   ((2^_44)qtsz])  (pU0([E1cv yRef@hkyX06B)]) ((0;1"_)zfyc"1@pTRandom xCpts)''
_16.135 132.839 0.803023 _5.1239



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