Revision history [back]
 | 1 | initial version |
You can define the following Python function:
def dotnabla(A, B):
nabla = E.metric().connection()
return nabla(B).contract(A)which evaluates (→A⋅→∇)→B as the contraction Aj∇jBi.
| | 1 | initial version |
You can define the following Python function:
def dotnabla(A, B):
nabla = E.metric().connection()
return nabla(B).contract(A)which evaluates (→A⋅→∇)→B as the contraction Aj∇jBi.
Copyright Sage, 2010. Some rights reserved under creative commons license. Content on this site is licensed under a Creative Commons Attribution Share Alike 3.0 license.