2,732 reputation
1939
bio website stevenvh.net/steven.php
location Flanders, Belgium
age 53
visits member for 1 year, 10 months
seen Mar 5 at 7:53

That's "Steven" (with the "n" at the end)


"The whole problem with the world is that fools and fanatics are always so certain of themselves, but wiser people so full of doubts." — Bertrand Russell


Product designer, consumer electronics: audio (with Philips), home automation.
Done computer science in a previous life too.


Belbin team roles: Plant and Resource Investigator


Personal values: respect, honesty, pride, modesty, fairness


I yell because I care


favorite candy


Dec
4
comment Have the Random functions changed?
@Artes - Thanks, I'll look at it. Any reason why it's better than Partition (which works now)?
Jun
22
comment Have the Random functions changed?
@0x4A4D - {4, -5, -7, -8, -3, -9, -5, -6, -1, 3}
Feb
9
comment Bug in Solve (Mathematica 9)
FWIW: same behavior in Windows version (Mathematica 9.0.0.0 under Windows 7)
Feb
3
comment Determining the week of a year from a given date
@John - Thanks for the upvote (I guess it's yours). Have you considered accepting a different answer, given that Heike's is not correct? (Doesn't have to be mine; mine is derived from Hans' answer.)
Feb
3
comment Determining the week of a year from a given date
@John - a year is at least 365 days long, which is 52 weeks + 1 day. If 1 January is week 1 (that's if it's a Monday, Tuesday, Wednesday or Thursday), then that extra day is in the 53th week, provided 1 January of the next year is a Friday, Saturday or Sunday. They're before week 1 because week 1 is the first week with a Thursday in it, so it's not week 1, nor week 52, because week 53 already started. If 1 January is a Friday, Saturday or Sunday then 1 January is the last week of the previous year, and 31 December will be week 52.
Feb
3
comment Determining the week of a year from a given date
@John - The code in my answer (which you also commented to) gives the correct week numbers. I explained there how you can have a week 53.
Jan
26
comment How can I create a fountain effect?
@cormullion - you mean "if you don't like" ;-).
Jan
26
comment relative scale of elements in ImageCompose
Actually, when I think about it IMO the Epilog makes more sense: first you plot the data, and then you indicate which points are relevant, instead of first indicating the relevant points on an empty page. But I'm nitpicking, and that on a Saturday night :-). HANWE!
Jan
26
comment relative scale of elements in ImageCompose
I can see the upvote indicator, and +2, but I'm not sure it was +1 before I voted.
Jan
26
comment relative scale of elements in ImageCompose
No, it's fine, and together with ssch's solution I like it better than kguler's. The reason for the transparency is that I'm more used to Epilogs than Prologs. I realize that I still often make the wrong choice == a lot to learn!
Jan
26
comment relative scale of elements in ImageCompose
Aha, a cheat! :-) I was thinking of cutting out the disk from a plane, like in CSG, but this is easier, of course. Thanks, +1. (I admit that I also cheat by just placing the purple dots over the blue ones, instead of replacing them.)
Jan
26
comment relative scale of elements in ImageCompose
Nice, thanks a bunch. +1 for now. (For an accept I'll wait to give others the chance to post an answer too.)
Jan
14
comment How can I get a running sum for a list?
I've thought of the Transpose + Take too, but I'm not sure it will be the fastest. I'll benchmark the different answers later and report back. In any case, thanks.
Jan
14
comment How can I get a running sum for a list?
Thanks. I didn't know about the Accumulate function. (which reminds me of what a fellow student of mine said: "programming is like magic. It's easy once you know the magic words.")
Jan
14
comment Correct way to generate large data sets (i.e.forward yield curve )
accept rate could be higher though. 24% on 38 questions isn't much. Please check your older questions and see if there's not a best answer. Acceppting is showing appreciation, but also indicates to other users that the question has been answered, so they can give priority to unanswered question. And to encourage accepting it gets you +2 rep too.
Dec
21
comment Can I redefine a list as a set of variables?
I like the alias function you added. This is exactly what I want, thanks a bunch! +1 for now (I'll wait with the accept and see if there are other ideas)
Oct
25
comment Can the banner in the Home Edition be removed?
@John - Fair enough. I thought that if the option is available it would also have been tested, though I understand that the kernel is much more important than some appearance setting. But I still don't know what the purpose of the banner is. Do you know if it is for the links to learning center and demonstrations?
Oct
21
comment How do I place frame ticks without having corresponding numbers?
@Mr.Wizard - Singularities are now periodic??? ;-)
Oct
18
comment How does Mathematica decide that Log[2,8] is integer?
Aaah, I should have dug deeper in the documentation :-(. I knew about Log10[], but didn't know there was a Log2[] as well. Thanks. (No need for Taylor here)
Oct
18
comment How does Mathematica decide that Log[2,8] is integer?
I was aware of the bit twiddling (I'm an electronics engineer and have low-level programmed lots of microcontrollers), but I thought the bit twiddling would be Mathematica's job, not mine :-). Still +1, thanks.