# calculus of variations

## Primary tabs

Defines:
brachistochrone problem
Type of Math Object:
Topic
Major Section:
Reference
Groups audience:

## Mathematics Subject Classification

### Beltrami Identity

I am not sure if your prconfition for using the Beltrami identiry is correct.

You are saying that dL/df = 0 as the precondition for using the Beltrami Identity. Sould it be dL/dx = 0 instead?

All the derivatives in this message should be interpreted as partial derivatives.

### Beltrami Identity

I am not sure if your prcondition for using the Beltrami identiry is correct.

You are saying that dL/df = 0 as the precondition for using the Beltrami Identity. Sould it be dL/dx = 0 instead?

All the derivatives in this message should be interpreted as partial derivatives.

### Beltrami Identity

I am not sure if your prcondition for using the Beltrami Ddentiry is correct.

You are saying that dL/df = 0 as the precondition for using the Beltrami Identity. Sould it be dL/dx = 0 instead?

All the derivatives in this message should be interpreted as partial derivatives.

### Beltrami Identity

I am not sure if your prcondition for using the Beltrami Identiry is correct.

You are saying that dL/df = 0 as the precondition for using the Beltrami Identity. Sould it be dL/dx = 0 instead?

All the derivatives in this message should be interpreted as partial derivatives.

### Beltrami Identity

I am not sure if your precondition for using the Beltrami Identity is correct.

You are saying that dL/df = 0 is the precondition for using the Beltrami Identity. Should it be dL/dx = 0 instead?

All the derivatives in this message should be interpreted as partial derivatives.

### 5 identical messages

One can see here (the messages attached to the entry "calculus of variations") that there are 5 messages with identical contents. Probably it was because the post button was 5 times pushed. So may be it is not bad idea to leave only one of them and rest to delete. If this can be done than this message is also not needed and should be deleted as well.

Regards
Serg.

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only with a help of mathematics