Mathematica

Number output formatting was Re: First function debug help
Dear Group, I could use some help in coaxing the JulianDayNumber output from an exponential form, e.g. - 2.43612*10^6 into the form: 2436116.31 Jumping back to my 1-18 message, any ideas on how to force the formatting of the number output of the function. Thanks, Kurt ----- Original Message ---- Fr... 22 Jan 2010 06:10

Initialization problem in a
As far as I can tell, y isn't used or displayed in these solutions and isn't defined outside the panel, so what's all that "assign" gyration about? Bobby On Wed, 20 Jan 2010 05:46:01 -0600, Patrick Scheibe <pscheibe(a)trm.uni-leipzig.de> wrote: Hi, it matters that your assign and initialize func... 21 Jan 2010 05:37

simple nest
Dear group: I have a function that gets five arguments, two of which are fixed, and three vary. Its output are three numbers. So it can be nested, for example over some initial values. Say: Nest[func[arg1,arg2,#[[1]],#[[2]],#[[3]]]&,{init1,init2,init3},k] Simple enough, works well. Now I want to nest the same f... 22 Jan 2010 06:11

Sorting paired columns of dates and values
I've imported a large flat file of dates and values in a structure like this: data = {{1/3/1984,997.5,1/5/1970,2402.85,1/2/1961,536.3}, {1/4/1984,998.6,1/6/1970,2406.22,1/3/1961,527.2}, {1/5/1984,1015.8,1/7/1970,2394.96,1/4/1961,527.4}, {1/6/1984,1029,1/8/1970,2283.68,1/5/1961,531.2}, {1/9/1984,1034.6,1/9/1970,... 22 Jan 2010 06:10

Using Mathematica to analyze Firefox startup performance
Folks, I'm tasked with improving Firefox performance on the Mac, particularly startup performance. I'm trying to do a rigorous analysis of my data and would rather use Mathematica than R. The two R scripts I have are density plot overlaid on top of normal distribution [1] and Wilcoxon/Anova + plot [2]. Woul... 20 Jan 2010 07:17

Colormap legend issues
I still have some problems. I am doing a MatrixPlot with values between 0.6 to 180.0 ( ColorFunction -> "TemperatureMap"], {ColorData["TemperatureMap"][#1] &, 10, ToString[Min[mydata]], ToString[Max[mydata]], ) the 0.6 points does not show blue in the plot so I don't think there is a correspondence between th... 25 Jan 2010 06:07

summation with mathematica
Hello Everybody, I want to calculate the following sum with Mathematica: Sum[((3 - 2 j^2 + i (3 + 2 j)) j! Gamma[2 + j] Gamma[2 + k])/((3 + i) ^2 (2 + i - j) (3 + i - j) (j - k)! Gamma[4 + j + k]),{j,0,i},{i, 0,infinity}] with k >= 0 Trying only the first summation over j, Mathematica expresses the result ... 19 Jan 2010 05:44

Initialization problem in a DynamicModule
Dear Group, I have some problem with a complex interface inside a DynamicModule. This is a toy version of the program, which can fully reproduce the malfunction: Panel(a)DynamicModule[ {x, y, assign, initialize}, Grid[{ {"", "A", "B"}, {"w/ assign:", RadioButton[Dynamic[x, (x = #; assign) &], Tr... 21 Jan 2010 05:37

Contour plot with color scale
Hello, I want to make a contour plot witht the color scale with the appropiate min and max on the side,???? bests, Eric ... 20 Jan 2010 07:17

First function debug help
I took a stab at writing my first function - converting a system formatted list date into a Modified Julian Day. The function appears to be written properly, but does not return anything. Any help in debugging it would be appreciated. Ideally, I would like to send a date-time list in the form {y,m,d,h,m,s} to ... 22 Jan 2010 06:11