# Grtensor 5d?

1. Oct 24, 2009

### alejandrito29

grtensor 5d???

I want to calculate the Ricci tensor for a 5-D metric.

For example , the randall sundrum metric.

$$ds^2=dw^2+exp(-2A(w))*(-dt^2+dx^2+dy^2+dz^2)$$

there is any computer program to calculate ricci tensor in 5d spacetime?

In 4d , using grtensor for the metric:

$$ds^2=exp(-2A(w))*(-dt^2+dx^2+dy^2+dz^2)$$

but, all component are zero (figure)

any suggestions?

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2. Oct 24, 2009

### pervect

Staff Emeritus
Re: grtensor 5d???

grtensor will do it - just do "makeg your_metric_name" and define your line element - it's not restricted to any fixed number of dimensions.

then do grcalc(Ricciscalar);