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1d
comment DumpsterDoofus's captivating generative art
@ciao My thesis: points are of limited value. Therefore: the value of a bounty is the attention it draws; to maximize value the full term of the bounty should be allowed to elapse. This and other site philosophy to be discussed at your leisure. :^)
2d
comment Why won't SparseArray let me store values with the head List?
Any chance this could be made a System Option?
2d
comment Get x and z coordinate from an image and make a parametric surface
"Back... somewhat." Excellent! Welcome back! :-)
2d
comment How to force Return[] to return from an arbitrary point (like in C++)?
@Jerry I meant that Module[{}, body] is simply body (in nearly all circumstances) therefore Module is inert as in "having no inherent power of action, motion, or resistance."
2d
comment DumpsterDoofus's captivating generative art
@ciao I sent you an email regarding Michael Richter's journal entry; did you receive it?
Apr
30
comment How to extract info from Association?
I have marked this as a duplicate as though this is a special case I feel everyone is better served by the redirect rather than closure. The association can be converted to rules with Normal, then any of the methods given there may be used. Or you can just use Keys and Values directly.
Apr
30
comment Buying a new computer (specifically for Mathematica)
@Oleksandr As stated above I am using Prime95; I used four processes since the 2500K is not "hyperthreading" enabled. If/when I clean the case and add a fan (right now there isn't even a dedicated exhaust fan on the case; air from the HSF is merely directed toward a vent) I'll also try a LINPACK test, but for the very reason you mention I don't personally consider this necessary; if it takes special tools to achieve this load I don't expect to encounter it in normal use.
Apr
29
comment Buying a new computer (specifically for Mathematica)
@Oleksandr A brief 30 minute stress test puts the hotter cores at 80-82°C Tjunction as reported by Real Temp. This is less that the 100°C TJ max that the tool also reports, but a bit hotter than I think I recall this running before. This is a far cry from a 24-hour burn test but no errors were reported and I haven't noticed stability problems so it seems the CPU hasn't degraded. Nevertheless I should probably give everything a good cleaning and replace/add a fan or two. If I remember to get that done I'll do a proper 24-hour burn and let you know how it goes.
Apr
29
comment Buying a new computer (specifically for Mathematica)
Lessening the stress I am also not running a fixed 4.6GHz overclock but letting the CPU down-clock to 4.1GHz when all four cores are in use. (I cannot recall what that feature is called.) Since most of the time I am only running one or two and it can sustain a 46 multiplier in that circumstance this is optimal for me. I am embarrassed to say I cannot recall what tool I need to run to monitor core temps but I started a Prime95 stress test a little while ago, so when I figure it out I can report current thermal behavior. (It might have changed in the last four years.)
Apr
29
comment Buying a new computer (specifically for Mathematica)
@Oleksandr Interesting analysis; I've never actually attempted to calculate the thermal transfer properties. It's been so long since I first played with OC'ing this CPU that I cannot recall the numbers you ask for. I also can't test 4.8GHz now as I have only one 12cm fan operating, whereas I had two on the heat sink and one on the case before. (continued)
Apr
27
comment Buying a new computer (specifically for Mathematica)
@Oleksandr I expect that the top full-time overclocks are still achieved with a phase change system (refrigeration compressor) but I wouldn't want the cost or complexity. I'll have to read about the permanently soldered processors.
Apr
27
comment Buying a new computer (specifically for Mathematica)
@Oleksandr I haven't looked at the state of affairs since 2011 and perhaps it has had a resurgence but water cooling fell out of favor with the introduction of heat pipe coolers for all but special applications. The 2500K is only a 95W TDP chip which is no more than e.g. the earlier Kentsfield chips that could also be overclocked with fan-on-heat-pipe coolers. My 4.6GHz clock can be achieved quietly; I could probably drive the chip to 4.9-5.0GHz on air with higher speed fans if I did not mind it sounding like a hairdryer as other people have done that. (continued)
Apr
24
comment Replace parts of nested lists
Possible duplicate: (3069)
Apr
24
comment Convert the output of solve into equality
It is a duplicate. Please see the link inserted at the top of your question. If no assignments exist /. {Rule -> Set} will work.
Apr
24
comment List and patterns
@science404 You should look at this again. Direct generation (this answer) really is superior to overproduction and filtering. kguler: Join @@ Table is much faster than your Flatten/Partition construct.
Apr
24
comment There is an issue with Manipulate in which it updates its argument twice in V10
@Algohi No problem. Let me know when you are able to post that example here. I get busy too so you make have to poke me a few times before I remember to answer. :^)
Apr
24
comment Flattening of Matrix rows
@ciao There is a gmail account attached to your profile. Unless you state otherwise I shall take the above comment as permission to contact you via that address.
Apr
23
comment How to make new line in mathematica file output?
Consider also mentioning WriteString +1
Apr
23
comment Flattening of Matrix rows
@ciao I am afraid I have forgotten it. If you have mine please email me. If not please let us connect before your departure.
Apr
23
comment Unexpected slowness checking for empty list?
@ciao Thank you for the kind words. If you are really leaving us I am sorry, but I wish you well and hope you find satisfaction in your new endeavors.