In the spirit of the StackOverflow threads of "hidden" language features, we can use this thread (community wiki) to aggregate useful but little-known features or tricks of Sage. Perhaps these can be collected and added to the documentation in the future.
Though is general for python, it is always worth reading: Code like a Pythonista
Sébastien Labbé has a blog post with various Sage tricks.
To preview LaTeX code from the command line, use the following:
show(LatexExpr(r'\frac{3}{4}x + 3'))
From the notebook,
html(r'$\frac{3}{4}x + 3$')
also works.
By the way, it would be useful (if it doesn't already exist) to have a function to render LaTeX code to an image just large enough to fit the expression, for export to environments that do not support LaTeX (an HTML website, for example).
In the command line, the underscore is a variable holding the result of the last output. This is very useful, e.g., for the following:
sage: integrate(cos(x), x)
sin(x)
sage: diff(_, x)
cos(x)
Symbolic variables can be created from the command line as follows, faster than typing out var('x y z'):
,var x y z
Asked: 2013-04-29 01:09:50 +0200
Seen: 3,572 times
Last updated: Oct 15 '20
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