How to use
Answer to problem 5.4.3
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Dynamic Implications
> grtw();
> makeg(spacetime);
Makeg 2.0: GRTensor metric/basis entry utility
To quit makeg, type 'exit' at any prompt.
Do you wish to enter a 1) metric [g(dn,dn)],
2) line element [ds],
3) non-holonomic basis [e(1)...e(n)], or
4) NP tetrad [l,n,m,mbar]?
makeg>1;
Enter coordinates as a LIST (eg. [t,r,theta,phi]):
makeg>[ct,x,y,z];
Is the metric 1) Diagonal, or
2) Symmetric?
makeg>1;
Enter g[ct,ct]:
makeg>((1+((A(ct))*x)+((F(ct))*y)+((G(ct))*z))^2);
Enter g[x,x]:
makeg>-1;
Enter g[y,y]:
makeg>-1;
Enter g[z,z]:
makeg>-1;
If there are any complex valued coordinates, constants or functions
for this spacetime, please enter them as a SET ( eg. { z, psi } ).
Complex quantities [default={}]:
makeg>{};
You may choose to 0) Use the metric WITHOUT saving it,
1) Save the metric as it is,
2) Correct an element of the metric,
3) Re-enter the metric,
4) Add/change constraint equations,
5) Add a text description, or
6) Abandon this metric and return to Maple.
makeg>1;
Information written to: `C:/Grtii(6)/Metrics/spacetime.mpl`
Do you wish to use this spacetime in the current session?
(1=yes [default], other=no):
makeg>1;
Initializing: spacetime
makeg() completed.
> grcalc(R(up,dn,dn,dn));
Created definition for R(up,dn,dn,dn)
> grdisplay(R(up,dn,dn,dn));
>
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Dynamic Implications