| Directions in computer algebra |
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| Regions with W > 0 are shaded, the boundaries being the roots to W = 0. The shaded region extends to indefinitely to the right where W approaches 0 as x goes to infinity. There are six directions along which W need not diverge. The values of this scalar shown are 5, 1, 0.05, 0.005, 0.0005, 0, -0.005, -0.0368, -1, -5. The diagram holds for all Kerr balck holes (x=r/a, a is not zero). An alternate view in the Kerr-Schild plane. |