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The Maxima on-line user's manual

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Scurvature

Function: scurvature () Returns the scalar curvature (obtained by contracting the Ricci tensor) of the Riemannian manifold with the given metric.

load(ctensor);
(cframe_flag:false,gcd:spmod,ctrgsimp:true,ratfac:true);
lg:diag_matrix(-1,2,r^2,(sin(%theta)*r)^2);
ct_coords:[t,r,%theta,%phi];
depends(%nu,[r,t],%lambda,[r,t]);
cmetric(false);
christof(mcs);
 riemann(true);
ricci(true);
R:scurvature();

(%o1)                                true
(%i2) 

Related Examples

scurvature

? scurvature;

Calculate

scurvature

? scurvature;

Calculate