Math Forum / Math Software / Mathematica / February 2010

Hi Group,
suppose you wanna to display an alert to the user before to continue the
execution of your code when some conditions occur : probably you'll use
ChoiceDialog[], the useful function that "puts up a standard choice

I'm using Mathematica 6.0 on a Mac (2.5GHz Intel Core 2 Duo with 4GB
memory)  with Snow Leopard 10.6.2.
I have a relatively long boolean expression that I will apply the DeMorgan's law, i.e LogicalExpand[! expr]. This takes some minutes.
Is there any possible solutions to "speed ...

I'm having trouble using parametrized assumptions consistently.  I have
two objects, q and r, both having a label and an index.  Now, I want
that the following holds for any label L:
  q[L, 0]^2 - q[L, 1]^2 == 1

I would like to minimize FinancialData access time for potentially
large dataset (number of instruments).
FinancialData[#] & /@  {"AAPL", "MSFT", "ORCL"}
or the equivalent

I'm using Mathematica 6.0 on a Mac (2.5GHz Intel Core 2 Duo with 4GB
memory)  with Snow Leopard 10.6.2.
I have a relatively long boolean expression that I will apply the DeMorgan's law, i.e LogicalExpand[! expr]. This takes some minutes.
Is there any possible solutions to "speed ...

I have 15 lists with semi-descriptive names.  I want to make a
function that builds a plot (histogram, actually) that has the
particular list name as a label.
Something like this:

I want to write a package and have some public variables name like
what would be in TeX
\tilde{m}
xyz_{w}

    How can I set the window dimensions and location using
WindowSize and WindowMargin in my init.m file?  I must be using the
wrong syntax because no matter what dimensions I enter the Untitled-1
window opens with the same size and location.

Hello mathGroup:
These 3 commands are taken directly from the help page for Zernike[].
r2c[e_] :=
Simplify[TrigExpand[e] /. {Sin[\[Theta]] :> y/r,

I would like to know if anyone in this group has written Mathematica
code for the automatic calibration of a camera using bundle adjustment.
Thank you,
--V. Stokes

I want to define
f[x_]=a x^2
and after
g[a_,f_]= 2a+f

Can anyone suggest an elegant way to apply a function - in this case a
Style - to elements in a list.
In the example below I'm applying colours to their names.  (I don't
know how Text is being used so I aimed to preserve the original

I need a way to control the real memory usage by MathKernel for
preventing swapping on my machine. I am totally disappointed
MemoryConstrained[] (sometimes it works, sometimes fails).
I have not used JLink before and know nothing on Java language but

Dear MathGroup,
    I have a Mac OS X computer cluster in a Beowulf configuration.  Each
machine has 16 gigabytes of RAM. I am trying to get each machine to
import a "large" HDF5 file (88 megabytes in size), only a small

hi  i have an objective function with constraints as below
(c0^2+c1^2+c2^2)(0.0765)+0.0916(c0*c1)-0.0916(c1*c2)-0.021(c0*c2)
subject to
(c0^2+c1^2+c2^c3)=1