This is about the differential
Differentiation
some text here about #differentiation as an #example and more $x^2$ there.
Example
Contains some code in backticks as an #Example.
ex = 4 * x - x^2
ex = ((9 - ex)^3).expand()
show(latex(ex))
print "differentiated gives:"
show(latex(ex.diff(x)))
should give
...
This was easy, wasn't it?
And now a neat link to a knowl example ...
Mentioned in
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