[sage-support] Re: Why so slow?

I think the main problem is the use of a recursively defined Hermite polynomial rather than the SAGE function hermite defined in functions/orthogonal_polys.py (which uses maxima). Writing h(n,y) for your hermite(n,y), then phi1 for the function which uses h, and phi for the function which uses SA

[sage-support] subs and substitute

subs and substitute are not equivalent for single variable polynomials, though they are in the field of fractions or for polynomials in more than one variable: -- | SAGE Version 2.8.15, Release Date: 2007-12-03

[sage-support] Re: Weaning

On Dec 4, 2:30 am, "Mike Hansen" <[EMAIL PROTECTED]> wrote: > > 1) Taylor series of a rational function. > > > This works: > > sage: cos(x).taylor(x,0,2) > > > This doesn't: > > sage: x/(1+x).taylor(x,0,2) > > > This is very confusing: > This is due to the fact that '.' binds tighter than '/'

[sage-support] Upgrade ate my worksheets

I successfully upgraded 2.8.14 -> 2.8.15 [Mac OS X 10.4.11, 2 GHz Intel Core 2 Duo, 1 GB]. But my worksheets do not appear when I do sage -notebook I'm told that "The notebook files are stored in: ~/.sage/ sage_notebook", but there's no trace there. However they do seem to be in ~/sage_noteb