comp.soft-sys.math.mathematica
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Mathematica discussion group. (Moderated)enHints for using subscripted variables in Mathematica packages
https://groups.google.com/d/msg/comp.soft-sys.math.mathematica/rhIhi-v_D5E/qTf0O3o6Cd4J
Hi, perhaps some of you have 'struggled' in the past with subscripted or subsuperscripted variables. To my opinion and observation most Mathematica users do not exploit the potential of the Mathematica notation. As I had noticed Mathematica code and output would (sometimes) look much nicer andhttps://groups.google.com/d/topic/comp.soft-sys.math.mathematica/rhIhi-v_D5E
Dr. Robert KraglerFri, 23 May 2014 06:42:45 UTCRe: ListPointPlot3D[Tooltip[]] Help
https://groups.google.com/d/msg/comp.soft-sys.math.mathematica/866gBLJWnow/c0NWRveyNs8J
I want to plot 2 points {1,1,1} and {2,2,2} using ListPointPlot3D and Tooltip, labelling each point "a" and "b" respectively. ListPointPlot3D[Tooltip[{{1, 1, 1}, {2, 2, 2}}, {"a", "b"}]] doesn't seem to work (it displays "{a,b}" at both points) Thanks for any help... Hi, try this: Show[{https://groups.google.com/d/topic/comp.soft-sys.math.mathematica/866gBLJWnow
Alexei BoulbitchFri, 23 May 2014 06:42:25 UTCimages
https://groups.google.com/d/msg/comp.soft-sys.math.mathematica/c5pRJBxW3i0/qjtQa9q8ulsJ
Dear group: suppose I import the image of a horse and of a cat, and I want to produce a combined image, with the head of the cat and the boy of the horse. How can I proceed? Thanks Franciscohttps://groups.google.com/d/topic/comp.soft-sys.math.mathematica/c5pRJBxW3i0
Francisco GutierrezWed, 21 May 2014 08:14:46 UTCRe: Building a matrix
https://groups.google.com/d/msg/comp.soft-sys.math.mathematica/3awPbsBXsX8/zQykw7ctkU0J
Given: m = [0,0,0} n = {1,2,3} how can I get a function to give: {{1,2,3,0,0,0,0,0,0}, {0,0,0,1,2,3,0,0,0}, {0,0,0,0,0,0,1,2,3}} ??? Bruno Hi, Bruno, You might do like the following, for example: Map[Flatten, Table[RotateRight[{n, m, m}, i], {i, 0, 2}]] Returning {{1, 2, 3, 0, 0,https://groups.google.com/d/topic/comp.soft-sys.math.mathematica/3awPbsBXsX8
Alexei BoulbitchWed, 21 May 2014 08:14:26 UTCRe: packages...
https://groups.google.com/d/msg/comp.soft-sys.math.mathematica/zY_OzS2-6DA/7ZanHIr6EZ8J
Absolutely! I suggest looking at the stock packages for how to do this. Graphics & Statistics are good places to start. D. On 20/05/14 08:16, Francisco Gutierrez wrote: > Dear Friends: > I want to create a relatively complex package, with the following structure: > > `mypackage`Master,https://groups.google.com/d/topic/comp.soft-sys.math.mathematica/zY_OzS2-6DA
David William AnnettsWed, 21 May 2014 08:14:05 UTCListPointPlot3D[Tooltip[]] Help
https://groups.google.com/d/msg/comp.soft-sys.math.mathematica/JnKXH1hgZDI/andI_m9jy-cJ
I want to plot 2 points {1,1,1} and {2,2,2} using ListPointPlot3D and Tooltip, labelling each point "a" and "b" respectively. ListPointPlot3D[Tooltip[{{1, 1, 1}, {2, 2, 2}}, {"a", "b"}]] doesn't seem to work (it displays "{a,b}" at both points) Thanks for any help...https://groups.google.com/d/topic/comp.soft-sys.math.mathematica/JnKXH1hgZDI
reise...@gmail.comWed, 21 May 2014 08:13:45 UTCpackages...
https://groups.google.com/d/msg/comp.soft-sys.math.mathematica/zY_OzS2-6DA/eeuoErP-dasJ
Dear Friends: I want to create a relatively complex package, with the following structure: `mypackage`Master, which can be invoked if one wants all the utilities, and which calls all the subpackages (each one with several functions) and `mypackage`Utilities1, ..., `myPackage`Utilitiesn,https://groups.google.com/d/topic/comp.soft-sys.math.mathematica/zY_OzS2-6DA
Francisco GutierrezTue, 20 May 2014 00:16:29 UTCRe: Mathematica inside Excel VBA Macro
https://groups.google.com/d/msg/comp.soft-sys.math.mathematica/NHuBvzgYVsE/oDO-QsPWIdsJ
Hi Murta. I encountered the same situation. Did you find anything? Thanks, =C5 pelahttps://groups.google.com/d/topic/comp.soft-sys.math.mathematica/NHuBvzgYVsE
pokluka...@gmail.comMon, 19 May 2014 06:05:37 UTCslow Mathematica
https://groups.google.com/d/msg/comp.soft-sys.math.mathematica/SDq4oS69qyU/8gbIuUJZONoJ
hello Mathematica 8 and I have brought me the version 9 and the nocche amba morning stopped working at top speed seconds calculations that lingered now linger long, mahematica freezes in a cycle running ... any ideashttps://groups.google.com/d/topic/comp.soft-sys.math.mathematica/SDq4oS69qyU
ZeroMon, 19 May 2014 06:05:17 UTCWhy can't I solve this ODE set?
https://groups.google.com/d/msg/comp.soft-sys.math.mathematica/lS5-znPUJts/MweLeSk7QYEJ
I tried to use Mathematica to solve this OED set: DSolve[{y''[r] + (1/r + 2 I p) y'[r] + (-2 h + 2/r - m^2/r^2 - p^2) y[r] == 2 a z[r], z''[r] + (1/r - 2 I p) z'[r] + (-2 h + 2/r - m^2/r^2 - p^2) z[r] == 2 a y[r]},{y,z}r] . But as I input it, nothing works. Mathematica just give back the samehttps://groups.google.com/d/topic/comp.soft-sys.math.mathematica/lS5-znPUJts
Neo SherringtonMon, 19 May 2014 06:04:56 UTCRe: Cirlce in 3D?
https://groups.google.com/d/msg/comp.soft-sys.math.mathematica/LbJHsw6BT0g/imJVrjXqA_UJ
Is the Grassmann Calculus notebook to which you refer currently included with your Grassmann Algebra package? If not, how can one obtain it? [David: Please reply privately as well as to this group. Thanks] On May 12, 2014, at 10:25 PM, djmpark <djm...@comcast.net> wrote: > Using John Browne'shttps://groups.google.com/d/topic/comp.soft-sys.math.mathematica/LbJHsw6BT0g
Murray EisenbergWed, 14 May 2014 09:25:57 UTCRe: DSolve test
https://groups.google.com/d/msg/comp.soft-sys.math.mathematica/r9i7q_or5EU/aG0YCtaqp9MJ
In all versions until now, Mathematica does not check the Lipshitz condition |f(u(t))-f(u(0))| < C |u(t)-u(0)| that guaranties uniqueness. The results for nonlinear ordinary differential equations are just those you find in the usual lists like Kamke oder EquationWorld. There exist nohttps://groups.google.com/d/topic/comp.soft-sys.math.mathematica/r9i7q_or5EU
Roland FranziusWed, 14 May 2014 09:25:37 UTCRe: Cirlce in 3D?
https://groups.google.com/d/msg/comp.soft-sys.math.mathematica/LbJHsw6BT0g/ko8Mk4tI_E0J
c33 returns the center of a circle thru 3 points in 3 dimensions. c33[{p1_,p2_,p3_}] := With[{q1 = p1-p3, q2 = p2-p3, q3 = p1-p2}, p3 + ((q2.q2)*(q3.q1)*q1 - (q1.q1)*(q3.q2)*q2)/(2 #.# & @ Cross[q1,q2])] c33 is a closed-form version of c3n, which returns the center of a circle thru 3 points inhttps://groups.google.com/d/topic/comp.soft-sys.math.mathematica/LbJHsw6BT0g
Ray KoopmanTue, 13 May 2014 02:27:33 UTCRe: DSolve test
https://groups.google.com/d/msg/comp.soft-sys.math.mathematica/agBQXkHo3BA/htqpJrY2ImMJ
our > > time, I'm glad to give this minor help :) > > > > > > Bug doesn't seem fixed > > > > sol = DSolve[{u'[t] == 2*Sqrt[u[t]], u[0] == 0}, u[t], t]; Print[sol]; > > > > returns > > > > {{u[t]->t^2}} > > > > (Mathematica 9, Intel 4570) > > > > > > Aleksandar Borkovichttps://groups.google.com/d/topic/comp.soft-sys.math.mathematica/agBQXkHo3BA
carlos.felipp...@gtempaccount.comTue, 13 May 2014 02:27:13 UTCRe: Compiler output type
https://groups.google.com/d/msg/comp.soft-sys.math.mathematica/2Sr_WRFw244/AIc7fhuT_VAJ
collatz = Compile[{{n, _Integer}}, If[EvenQ[n], n/2, 3 n + 1] // IntegerPart]; collatz2 = Compile[{{n, _Integer}}, If[EvenQ[n], n/2, 3 n + 1] // Round]; m = 1000000; Timing[t1 = Table[collatz[n], {n, m}];] {0.291132, Null} Timing[t2 = Table[collatz2[n], {n, m}];] {0.322116, Null}https://groups.google.com/d/topic/comp.soft-sys.math.mathematica/2Sr_WRFw244
Bob HanlonTue, 13 May 2014 02:26:52 UTCRe: Compiler output type
https://groups.google.com/d/msg/comp.soft-sys.math.mathematica/2Sr_WRFw244/r_3msFJGXx8J
This will do the trick: collatz = Compile[{{n, _Integer}}, If[EvenQ[n], n/2, 3 n + 1]//Round] I think that the problem is with n/2. Although the result is guaranteed to be integer, the compiler cannot analyze the code and know it, so the output is set to Real. > Some compiled functions yieldhttps://groups.google.com/d/topic/comp.soft-sys.math.mathematica/2Sr_WRFw244
DanielTue, 13 May 2014 02:26:32 UTCRe: Cirlce in 3D?
https://groups.google.com/d/msg/comp.soft-sys.math.mathematica/LbJHsw6BT0g/wbxlrxVUaJwJ
Using John Browne's Grassmann algebra application and with the three points at Cartesian coordinates {ax, ay, az}, {bx, by, bz}, and {cx, cy, cz} I calculated the center of the circle at: {x -> -(4 (az (by - cy) + bz cy - by cz + ay (-bz + cz)) (-(ax^2 + ay^2 + az^2 - bx^2https://groups.google.com/d/topic/comp.soft-sys.math.mathematica/LbJHsw6BT0g
djmparkTue, 13 May 2014 02:26:11 UTCRe: DSolve test
https://groups.google.com/d/msg/comp.soft-sys.math.mathematica/agBQXkHo3BA/d1yQT-wXLKIJ
First, all the best to one of the most influential mechanics teacher of our time, I'm glad to give this minor help :) Bug doesn't seem fixed sol = DSolve[{u'[t] == 2*Sqrt[u[t]], u[0] == 0}, u[t], t]; Print[sol]; returns {{u[t]->t^2}} (Mathematica 9, Intel 4570) Aleksandar Borkovichttps://groups.google.com/d/topic/comp.soft-sys.math.mathematica/agBQXkHo3BA
Sasa BMon, 12 May 2014 04:46:04 UTCRe: Numerical solution from Module
https://groups.google.com/d/msg/comp.soft-sys.math.mathematica/XNroGf09PZY/qnXLBsE928EJ
The arguments of soln are not the a, b, and c in f. A couple of solutions: soln[aval_, bval_, cval_] := Module[{}, xsoln = Solve[f[x] == 0 , x]; x /. xsoln/.{a->aval,b->bval,c->cval}] f[x_,a_,b_,c_]:= a*x^2 + b*x + c soln[a_,b_,c_]:=x/.Solve[f[x,a,b,c]==0,x] On May 9, 2014, at 2:07 AM, Robhttps://groups.google.com/d/topic/comp.soft-sys.math.mathematica/XNroGf09PZY
Sseziwa MukasaMon, 12 May 2014 04:45:43 UTCRe: DSolve test
https://groups.google.com/d/msg/comp.soft-sys.math.mathematica/agBQXkHo3BA/YGgtuAmInO4J
What bug? The solution is all right, ain't it? (V.9.0.1) sol=DSolve[{u'[t]==2*Sqrt[u[t]],u[0]==0},u[t],t]; Print[sol] {{u[t]->t^2}} Of course, you must delete the last semicolon in the input cell if you want to see the solution printed. -Tomas > From: carlos.felipp...@gtempaccount.com >https://groups.google.com/d/topic/comp.soft-sys.math.mathematica/agBQXkHo3BA
Tomas GarzaMon, 12 May 2014 04:45:23 UTCRe: DSolve test
https://groups.google.com/d/msg/comp.soft-sys.math.mathematica/agBQXkHo3BA/J6R3jYKYG4QJ
On 5/9/14 at 2:07 AM, carlos.felipp...@gtempaccount.com wrote: >Hi, could somebody try this in Mathematica 9 to see if the bug is >fixed? >sol = DSolve[{u'[t] == 2*Sqrt[u[t]], u[0] == 0}, u[t], t]; >Print[sol]; I don't see any evidence of a bug In[1]:= sol = DSolve[{u'[t] == 2*Sqrt[u[t]],https://groups.google.com/d/topic/comp.soft-sys.math.mathematica/agBQXkHo3BA
Bill RoweMon, 12 May 2014 04:45:03 UTCRe: mathematica modify code like?
https://groups.google.com/d/msg/comp.soft-sys.math.mathematica/SQ8Yoe020G8/05paTCJv0wYJ
You are clearly indexing an array 't', but you have not included its definition. This makes it hard to see exactly what you want to do, but if you want to print out information using various styles, you should wrap them in the Style function (look it up in the help system). (Clearly describedhttps://groups.google.com/d/topic/comp.soft-sys.math.mathematica/SQ8Yoe020G8
David BaileyMon, 12 May 2014 04:44:43 UTCRe: limits on symbol eigenvalues?
https://groups.google.com/d/msg/comp.soft-sys.math.mathematica/J-Z23EPxOlY/anUbTdWluBcJ
Not every symbolic problem that you can pose has a symbolic solution. For example, some symbolic integrals don't have symbolic solutions - likewise for differential equations. A symbolic eigenvalue problem of order N involves solving an N'th order polynomial equation. Specific cases can behttps://groups.google.com/d/topic/comp.soft-sys.math.mathematica/J-Z23EPxOlY
David BaileyMon, 12 May 2014 04:44:22 UTCRe: Numerical solution from Module
https://groups.google.com/d/msg/comp.soft-sys.math.mathematica/3M65fOLgPZk/IUm9FWQpOqYJ
I would put f inside the module as well. Here is my version: Clear[soln, a, b, c] soln[a_, b_, c_] := Module[{xsoln, f, x}, f[x_] = a*x^2 + b*x + c; xsoln = Solve[f[x] == 0, x]; x /. xsoln ] Try it out: soln[1,2,3] output: {-1-I Sqrt[2],-1+I Sqrt[2]} On 5/9/2014 2:07 AM, Robhttps://groups.google.com/d/topic/comp.soft-sys.math.mathematica/3M65fOLgPZk
KevinMon, 12 May 2014 04:44:02 UTCRe: DSolve test
https://groups.google.com/d/msg/comp.soft-sys.math.mathematica/agBQXkHo3BA/DQ8qkVSezxcJ
What alleged bug did you have in mind? Did something not work as expected with Print in an earlier version. And why use print at all? Just the DSolve expression by itself will give the same output. In Mathematica 9.0.1, this is: DSolve[{u'[t] == 2*Sqrt[u[t]], u[0] == 0}, u[t], t] (*https://groups.google.com/d/topic/comp.soft-sys.math.mathematica/agBQXkHo3BA
Murray EisenbergMon, 12 May 2014 04:43:42 UTCCompiler output type
https://groups.google.com/d/msg/comp.soft-sys.math.mathematica/2Sr_WRFw244/glGRYCAdSMYJ
Some compiled functions yield reals even if the input and necessary output are integers. How can I force the output to be an integer rather than a real in such cases? To be clear, not all compiled program output produces reals; some compiled programs, given integer inputs, produce integerhttps://groups.google.com/d/topic/comp.soft-sys.math.mathematica/2Sr_WRFw244
Harvey P. DaleMon, 12 May 2014 04:43:21 UTCCirlce in 3D?
https://groups.google.com/d/msg/comp.soft-sys.math.mathematica/LbJHsw6BT0g/sLo9ADZh2YIJ
I'm looking for a neat formula to find the center of a circle in 3D through 3 points. I also need a good way to display it, preferably thickened so I can show several and see whether they are linked, etc. To my surprise I did not find anything on the Wolfram sites about these problems. (I havehttps://groups.google.com/d/topic/comp.soft-sys.math.mathematica/LbJHsw6BT0g
Ste[hen GrayMon, 12 May 2014 04:43:01 UTCRe: Plotting Data By State
https://groups.google.com/d/msg/comp.soft-sys.math.mathematica/EyAxduDCkRk/eStrQvIkkxsJ
See http://stackoverflow.com/questions/8957067/mathematica-north-america-map Clear[crimeDataElements, population]; populationData = Flatten[{#[[1, {1, 2}]], Total[#[[All, 3]]]}] & /@ GatherBy[ Cases[ Drop[ Import[ "http://www.census.gov/popest/data/state/asrhttps://groups.google.com/d/topic/comp.soft-sys.math.mathematica/EyAxduDCkRk
Bob HanlonMon, 12 May 2014 04:42:41 UTCRe: Numerical solution from Module
https://groups.google.com/d/msg/comp.soft-sys.math.mathematica/XNroGf09PZY/a5SCIBWxTb0J
It is a scoping issue which is why the approach that uses explicit parameters in f works. Alternatively, deconflict the symbols Clear[a, b, c, f, soln]; f[x_] = (a*x + b)*x + c; soln[aa_, bb_, cc_] = Module[{x}, x /. Solve[f[x] == 0, x] /. {a -> aa, b -> bb, c -> cc}]; soln[a,https://groups.google.com/d/topic/comp.soft-sys.math.mathematica/XNroGf09PZY
Bob HanlonMon, 12 May 2014 04:42:20 UTCRe: DSolve test
https://groups.google.com/d/msg/comp.soft-sys.math.mathematica/agBQXkHo3BA/wBZOOvQkUpEJ
You did not say what bug or with which version. Version 9 gives a correct solution for t >= 0 $Version "9.0 for Mac OS X x86 (64-bit) (January 24, 2013)" sol = DSolve[ {u'[t] == 2*Sqrt[u[t]], u[0] == 0}, u[t], t][[1, 1]] u[t] -> t^2 u'[t] == 2*Sqrt[u[t]] /. NestList[D[#https://groups.google.com/d/topic/comp.soft-sys.math.mathematica/agBQXkHo3BA
Bob HanlonMon, 12 May 2014 04:42:00 UTCRe: Chained-functional notation examples?
https://groups.google.com/d/msg/comp.soft-sys.math.mathematica/3Mu8ZZjRaVg/IZSHuV_kYXAJ
On 5/7/14 at 2:44 AM, d...@gmail.com (Unknown) wrote: >Here's a related real-live problem: >list all files in Dir-tree:D | which are less-than daysOld:N | and >contain "egal" in the FullPathName | and contain String:"uid" OR >"UID" It is not entirely clear what it is you are trying to do.https://groups.google.com/d/topic/comp.soft-sys.math.mathematica/3Mu8ZZjRaVg
Bill RoweFri, 09 May 2014 06:08:46 UTCRe: MathKernel7 produces no Graphics
https://groups.google.com/d/msg/comp.soft-sys.math.mathematica/i5v-GtvR4jU/I4TVMKi0j0kJ
the > > graphical interface (~/bin/mathematica), plots are in fact shown, but > > I really prefer running just the MathKernel CLI. > > > > > > thanks, > > Jan > > I think this has changed in version 6. You can get something similar to the > old default behaviour (an extra window whichhttps://groups.google.com/d/topic/comp.soft-sys.math.mathematica/i5v-GtvR4jU
ritu...@gmail.comFri, 09 May 2014 06:08:26 UTCDSolve test
https://groups.google.com/d/msg/comp.soft-sys.math.mathematica/r9i7q_or5EU/VDMTqIuEiUQJ
Hi, could somebody try this in Mathematica 9 to see if the bug is fixed? sol = DSolve[{u'[t] == 2*Sqrt[u[t]], u[0] == 0}, u[t], t]; Print[sol]; Thanks.https://groups.google.com/d/topic/comp.soft-sys.math.mathematica/r9i7q_or5EU
carlos.felipp...@gtempaccount.comFri, 09 May 2014 06:08:06 UTCNumerical solution from Module
https://groups.google.com/d/msg/comp.soft-sys.math.mathematica/3M65fOLgPZk/_Go9P3V26jgJ
Hello every one, Here is a simple question. Say I define a function In[14]:= f[x_] := a*x^2 + b*x + c Then I use Module to frame the solution of f[x] ==0 In[15]:= soln[a_, b_, c_] := Module[{}, xsoln = Solve[f[x] == 0 , x]; x /. xsoln] When I enter numerical values forhttps://groups.google.com/d/topic/comp.soft-sys.math.mathematica/3M65fOLgPZk
Rob Y. H. ChaiFri, 09 May 2014 06:07:46 UTCRe: Chained-functional notation examples?
https://groups.google.com/d/msg/comp.soft-sys.math.mathematica/3Mu8ZZjRaVg/J7p42dj9JJUJ
I think the dates would have to be rounded to Day then the AbsoluteTime would be more comparable. AbsoluteTime[DayRound[DateList[], All]] < AbsoluteTime[DayRound[DayPlus[DateList[], 3], All]] Issues may be file dates compared to current date time, rounding and location (timezone) issues.https://groups.google.com/d/topic/comp.soft-sys.math.mathematica/3Mu8ZZjRaVg
Hans MichelFri, 09 May 2014 06:07:26 UTCRe: Chained-functional notation examples?
https://groups.google.com/d/msg/comp.soft-sys.math.mathematica/3Mu8ZZjRaVg/tcVuKohza08J
Daniel: Now What's the catch with Today? Today will only work in Wolfram Language (Mathematica v 10), which may be officially released Tomorrow? One can go on with a Who's on First theme. (Goes along with W|A baseball data) But currently the DateObject "Today" would have to be changed tohttps://groups.google.com/d/topic/comp.soft-sys.math.mathematica/3Mu8ZZjRaVg
Hans MichelFri, 09 May 2014 06:07:05 UTCRe: Chained-functional notation examples?
https://groups.google.com/d/msg/comp.soft-sys.math.mathematica/3Mu8ZZjRaVg/Qq8jAdZUyvUJ
something > that would work in Mathematica 9 or below. > > Hans Hans et al, You are correct, I was using an unreleased version. Actually some good came of it (I found a weakness in date comparisons that got addressed). I'll leave modification for versions <=9 to others more adept at thishttps://groups.google.com/d/topic/comp.soft-sys.math.mathematica/3Mu8ZZjRaVg
Daniel LichtblauFri, 09 May 2014 06:06:45 UTCRe: parametric and analytical geometry
https://groups.google.com/d/msg/comp.soft-sys.math.mathematica/2TL_9diYggk/N9bWkbA8jBsJ
On May 8, 2014, at 3:08 AM, Jim S. Lim <onwa...@gmail.com> wrote: > > hi all, > > i am an architect and a newbie too mathematica. i wish to build a program > related to parametric geometrical design (2 dimensional floor plans) and > parametric geometrical optimization. > > a few questionshttps://groups.google.com/d/topic/comp.soft-sys.math.mathematica/2TL_9diYggk
Chris CarlsonFri, 09 May 2014 06:06:25 UTCRe: Chained-functional notation examples?
https://groups.google.com/d/msg/comp.soft-sys.math.mathematica/3Mu8ZZjRaVg/ZR8oNdVJHx4J
Mathematica has a better, more consistent notation. But the facility of PRE, IN & POST-fix alternatives, seems bad. You want ONE way of acieving the goal. More rules just increases mental load. > > > > A major benefit of functional [unix-piping] programming style, is that you > > don'thttps://groups.google.com/d/topic/comp.soft-sys.math.mathematica/3Mu8ZZjRaVg
robyFri, 09 May 2014 06:06:05 UTCRe: Chained-functional notation examples?
https://groups.google.com/d/msg/comp.soft-sys.math.mathematica/3Mu8ZZjRaVg/M7QQEwjYl2gJ
A query such as this might do what you have in mind. Here directoryname should be changed to whatever directory you want searched. Select[FileNames[("*uid*" | "*UID*"), directoryname, Infinity], ((StringMatchQ[DirectoryName[#] , "*egal*"] && Today < DayPlus[FileDate[#], 3]) &] Alsohttps://groups.google.com/d/topic/comp.soft-sys.math.mathematica/3Mu8ZZjRaVg
Daniel LichtblauFri, 09 May 2014 06:05:44 UTCRe: Chained-functional notation examples?
https://groups.google.com/d/msg/comp.soft-sys.math.mathematica/3Mu8ZZjRaVg/6-WUT8JudaQJ
A query such as this might do what you have in mind. Here directoryname should be changed to whatever directory you want searched. Select[FileNames[("*uid*" | "*UID*"), directoryname, Infinity], ((StringMatchQ[DirectoryName[#] , "*egal*"] && Today < DayPlus[FileDate[#], 3]) &] Alsohttps://groups.google.com/d/topic/comp.soft-sys.math.mathematica/3Mu8ZZjRaVg
Daniel LichtblauFri, 09 May 2014 06:05:24 UTCparametric and analytical geometry
https://groups.google.com/d/msg/comp.soft-sys.math.mathematica/2TL_9diYggk/4HIxwNn38VAJ
hi all, i am an architect and a newbie too mathematica. i wish to build a program related to parametric geometrical design (2 dimensional floor plans) and parametric geometrical optimization. a few questions pops up and will just write them randomly as i think of one. 1. is there a way tohttps://groups.google.com/d/topic/comp.soft-sys.math.mathematica/2TL_9diYggk
Jim S. LimThu, 08 May 2014 08:08:38 UTCRe: Chained-functional notation examples?
https://groups.google.com/d/msg/comp.soft-sys.math.mathematica/3Mu8ZZjRaVg/dl_D6KGLdIIJ
A query such as this might do what you have in mind. Here directoryname should be changed to whatever directory you want searched. Select[FileNames[("*uid*" | "*UID*"), directoryname, Infinity], ((StringMatchQ[DirectoryName[#] , "*egal*"] && Today < DayPlus[FileDate[#], 3]) &] Alsohttps://groups.google.com/d/topic/comp.soft-sys.math.mathematica/3Mu8ZZjRaVg
Daniel LichtblauThu, 08 May 2014 08:08:17 UTCRe: Chained-functional notation examples?
https://groups.google.com/d/msg/comp.soft-sys.math.mathematica/3Mu8ZZjRaVg/ssnFimSqnn8J
On Tue, 06 May 2014 06:26:46 +0000, Unknown wrote: > I came to 'Mathematica' via Xahlee's criticism of the ad-hoc nature of > unix-piping [functional notation]. He claims [& I believe him] that > Mathematica has a better, more consistent notation. But the facility of > PRE, IN & POST-fixhttps://groups.google.com/d/topic/comp.soft-sys.math.mathematica/3Mu8ZZjRaVg
UnknownWed, 07 May 2014 06:45:05 UTCRe: Chained-functional notation examples?
https://groups.google.com/d/msg/comp.soft-sys.math.mathematica/3Mu8ZZjRaVg/KgGN7pyv_zEJ
On 5/6/14 at 2:26 AM, d...@gmail.com (Unknown) wrote: >I came to 'Mathematica' via Xahlee's criticism of the ad-hoc nature >of unix-piping [functional notation]. He claims [& I believe him] >that Mathematica has a better, more consistent notation. But the >facility of PRE, IN & POST-fixhttps://groups.google.com/d/topic/comp.soft-sys.math.mathematica/3Mu8ZZjRaVg
Bill RoweWed, 07 May 2014 06:44:45 UTCInstalling Mathematica on redhat "Extras" fails
https://groups.google.com/d/msg/comp.soft-sys.math.mathematica/zT27goz3v1E/kU9CQB336O0J
I tried to use the sh Mathematica_9.0.0_LINUX.sh command and I get the following: "Extraction falied. No space left on .16813" What can I do? I definitively have enough hard drive space... Any help would be appreciated.https://groups.google.com/d/topic/comp.soft-sys.math.mathematica/zT27goz3v1E
郭子湖Wed, 07 May 2014 06:44:24 UTCmathematica modify code like?
https://groups.google.com/d/msg/comp.soft-sys.math.mathematica/SQ8Yoe020G8/fl0Z220nTYwJ
hi how to modify this line to the letter remains in bold and can enlarge at will (this is the last line of a larger code) For[i = 1, i <= 20, i++, Print[If[i < 10, "O", ""] <> ToString[i], spc[5], "A = ", toStrg /@ t[[i, 1]], spc[col - Plus @@ StringLength[toStrg /@ t[[i, 1]]]], "B =https://groups.google.com/d/topic/comp.soft-sys.math.mathematica/SQ8Yoe020G8
ZeroTue, 06 May 2014 06:27:06 UTCChained-functional notation examples?
https://groups.google.com/d/msg/comp.soft-sys.math.mathematica/3Mu8ZZjRaVg/ddcMqRb7M-cJ
I came to 'Mathematica' via Xahlee's criticism of the ad-hoc nature of unix-piping [functional notation]. He claims [& I believe him] that Mathematica has a better, more consistent notation. But the facility of PRE, IN & POST-fix alternatives, seems bad. You want ONE way of acieving the goal.https://groups.google.com/d/topic/comp.soft-sys.math.mathematica/3Mu8ZZjRaVg
UnknownTue, 06 May 2014 06:26:46 UTCRe: Period of numerically defined function
https://groups.google.com/d/msg/comp.soft-sys.math.mathematica/VeailDM27Q4/qdEO8EvMUDgJ
Might want to check these. http://mathematica.stackexchange.com/questions/5852/how-to-find-the-period-of-an-arbitrary-mathematical-function http://mathematica.stackexchange.com/questions/38217/finding-fourier-transform-of-data-and-hence-frequencies http://mathematica.stackexchange.com/questionhttps://groups.google.com/d/topic/comp.soft-sys.math.mathematica/VeailDM27Q4
Daniel LichtblauTue, 06 May 2014 06:26:25 UTCaccess to perspective routines
https://groups.google.com/d/msg/comp.soft-sys.math.mathematica/vib2D2N_tQ0/CTuGsOjYFjgJ
Hello, I'm thinking about changing an aspect of the way mathematica computes perspective 3D-graphics. What I would like to do is define a function that operates on my polygons differently depending on whether they are visible or not from the current viewpoint. It might be as simple as justhttps://groups.google.com/d/topic/comp.soft-sys.math.mathematica/vib2D2N_tQ0
christopher arthurMon, 05 May 2014 07:03:05 UTC