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Is this the behavior we want?
``` r
> k K area f
> f(2)
Error in (1 - x^2)/area : 'area' is missing
```
Or do we want these functions to look in the global environment for such constants (prefe…
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The current high-order symplectic stepper is not suitable for high-precision types as it constructs parameters from double. A symplectic stepper with arguments constructed from integers should be adde…
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**Introduction**
The `DifferentialAlgebra` Sage package is an analogue of the MAPLE 14 `DifferentialAlgebra` package.
The underlying theory is the differential algebra of Ritt and Kolchin.
Its main…
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Minh Nguyen send the following patch
```
--- sage-2.8.15/devel/doc-main/tut/tut.tex 2007-12-14
13:05:11.000000000 +1100
+++ sage-2.8.16/devel/doc-main/tut/tut.tex 2007-12-20
15:17:58.0000…