Sage will not solve this system of equations:
x^2 + y^2 == 25
x^2 - y^2 - y == 5 (-y^2)
{{{
sage: var('x y')
sage: solve( [x^2 + y^2 == 25, x^2 - y^2 - y == 5], x,y )
[]
}}}
Yet, save will solve this system of equations:
x^2 + y^2 == 25
x^2 + y^2 - y == 5 (+y^2)
{{{
sage: so
* your platform and operating system
* which version of Sage you use (command: "version()" in Sage)
* how you have acquired Sage (binary build, compiled from
source, ...)
* and if applicable, include reproducible commands which cause the
error, along with possible error messages.
I have dug up an odd problem with plot3d and Jmol. If I execute a
plot3d command from within a sage notebook
I get a black Jmol window. However, If I publish the notebook, then
view it from the published directory the plot shows up in the Jmol
window. In addition, If I try to edit the published
Where can one find md5sum hashes for the Sage LiveCD?
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How does one input derivatives of unknown funktions into sage?
IE x*f'(x)+x^2*f''(x)
How does one input f'(x) and f''(x)?
Does one have to resort to explicit maxima syntax?
IE maxima("x*('diff(f(x), x, 1))+x^2*('diff(f(x), x, 2))")
In sage, an unknown variable (y) is defined var('y'), but
how
