Mathematica

SendMail and Novell Groupwise
Hi Folks, I teach at a small community college in PA where our email is managed through Novell Groupwise. I'm interested in using Mathematica to programmatically send student-customized emails using Mathematica 7's new SendMail functionality. As you might imagine I have not been succesful to date. When I ... 9 Sep 2009 05:15

Mathematica 7 on netbooks
I'll buy a neetbook - Acer aspire One D250 (N270 1.6 Ghz, Xp home, 1 Gb ram). I need Mathematica 7 for student purposes in mathematics. Can a netbook run Mathematica 7 well? I need it for integral computing, graphic plots, solving system of equations. Is someone running Mathematica 7 with a netbook? Thanks... 9 Sep 2009 05:15

How reliable are mathematica's special functions? (Hypergeometric
On Sep 6, 9:37 pm, janey <janemk...(a)gmail.com> wrote: I don't know if WRI will divulge anything about their algorithms for numerical approximation of Hypergeometric functions. Can I trust it? Mathematica 6.0 can handle AppelF1[1.6+.6] say, but Mathematica 7.0 won't even give an actual number (this is a prob... 7 Sep 2009 03:24

Ukkonen's Suffix Tree Algorithm in Mathematica
I've ported a C implementation of Ukkonen's algorithm for suffix trees to Mathematica. I'm happy to send it along to anyone interested. Cheers, Scott ... 11 Sep 2009 06:14

Significant Digits in Mathematica in Excel
Hi, I'm currently using Mathematica in Excel and am trying to multiply a number by an undefined variable to a certain precision, but mathematica will only allow six digit precision for multiplying by an undefined variable. For example, if I enter =EVAL(".2527777777778 z"), the cell returns .252778*z When I t... 3 Sep 2009 20:41

Size of numerical slider value in Manipulate
You could try Control with Row. Manipulate[Plot[Sin[n x],{x,-5,5},PlotRange->{-1,1}],Row[{Control@{{n,1,Style["mylabel",24,Bold]},1,3},Style[Dynamic[n],24,Bold]}]] - Jaebum Porscha Louise McRobbie wrote: Hello, How can I control the font size of the displayed value of the slider variable "n" ... 3 Sep 2009 07:36

Faster alternative to AppendTo? --
This will not work as 1 is not a fixed point unless you make it so: collatz[1]:=1 On Wed, 02 Sep 2009 04:07 -0400, "Kurt" <ekt(a)fastmail.net> wrote: Try this (you're on your own for timing long runs) collatz[x_Integer/;EvenQ[x]]:=x/2 collatz[x_Integer]:=3 x +1 Then the orbit of an integer n is... 3 Sep 2009 07:36

Can I do this faster?
I start with two 2 dimensional lists. The have equal depths, but may or may not have equal lengths. Possible data looks like this: list1 = RandomReal[{0, 1}, {1500, 3}]; list2 = RandomReal[ExponentialDistribution[2], {1000, 3}]; The following produces the results I need, but takes longer to run than I'd like... 4 Sep 2009 04:20

plot question
Say, I have the plot Plot[-Log[Abs[x]], {x, -2, 2}] To invert the y axis I use Plot[Log[Abs[x]], {x, -2, 2}, Ticks -> {Automatic, Table[{i, -i}, {i, -4, 1}]}] Is there another way? Thanks in advance. Dimitris ... 25 Dec 2008 04:15

Bug_of_Solve
Let the equation x^(2/3)-x^(1/3)-6=0 The roots of this equation are x=27 and x=-8. But Mathematica 6.0.1 yields: In[]: Solve[x^(2/3)-x^(1/3)-6=0,x] Out[]: {{x->27}} In[]: x^(2/3)-x^(1/3)-6/.x->27 Out[]: 0 In[]:= x^(2/3)-x^(1/3)-6/.x->-8. Out[]: -9+1.73205i Where is my error? ... 25 Dec 2008 04:15