- Lie derivative
- Exterior product
- Tensor product
- Hodge operator
- Covariant derivative
| Constants[c1, c2, ..., ci, ..., cn] allows one to declare constants |
- In the Atlas package any identifier is treated as 0-form i.e. as non-constant scalar (if it not declared as constant, p-form, tensor etc. (see Types)).
- In the Atlas package constants are constant 0-forms.
- Some constants are predefined such as Catalan, Pi, I and _Z (for RootOf procedure)
- The constant identifier can be either symbolic or indexed.
EXAMPLES
Basic Examples
Verify that lambda is a constant using exterior derivative operator (see d):
For better understanding (see Functions):
And corresponding exterior product (see d) is:
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declared as a constant thus:
