## 257 Reputation

11 years, 260 days

## I don't know what else to tell you since...

I don't know what else to tell you since you won't show me a worksheet. It could be a trivial kind of error that you are making. For example, are you using the "assuming" facility anywhere?  That can cause problems if used incorrectly.

## I don't know what else to tell you since...

I don't know what else to tell you since you won't show me a worksheet. It could be a trivial kind of error that you are making. For example, are you using the "assuming" facility anywhere?  That can cause problems if used incorrectly.

## I will contact you by email then....

I will contact you by email then.

The metric?

A worksheet?

Maple version?

Thanks.

charlie

## Does this work in classic mode?...

Does this work in classic mode?

## Here's one bit of documentation...

If I can find the time, I will try to write something up with the nice level of clarity that you provided us in your post.  In the meantime, in Maple Help, have a look at what is here

charlie

## DifferentialGeometry can use an anholono...

Just to clarify something...  In DifferentialGeometry you can certainly use an anholonomic basis of, e.g., unit vectors.

## Will this be fixed in Maple 16?...

Will this be fixed in Maple 16?

## I misunderstood, I guess. I thought you ...

I misunderstood, I guess. I thought you were trying to covariantly differentiate vector fields on M.

I suspect I still don't know quite what you are after.

If you simply want to pullback a connection from M to S, you can do this with PushPullTensor applied to the connection on M. First argument should be a Transformation from N to S, with the expression of coordinates on S in terms those on M. Second argument should be the map (i) embedding S into M.

charlie

## I misunderstood, I guess. I thought you ...

I misunderstood, I guess. I thought you were trying to covariantly differentiate vector fields on M.

I suspect I still don't know quite what you are after.

If you simply want to pullback a connection from M to S, you can do this with PushPullTensor applied to the connection on M. First argument should be a Transformation from N to S, with the expression of coordinates on S in terms those on M. Second argument should be the map (i) embedding S into M.

charlie

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