1,095 reputation
213
bio website
location Frankfurt, Germany
age 55
visits member for 2 years, 1 month
seen 29 mins ago

Physicist, scientist, using Mathematica for more than 20yrs. Working on light microscopy, three-dimensional microscopy, light sheet-based fluorescence microscopy.


Oct
26
comment Defining and evaluating new continuous distributions based on Mathematica's distributions
Thank you very much that was exactly what I was looking for. The collection guide/DerivedDistributions summarizes a number of other functions I was looking for.
Jul
20
comment Why is parallel slower?
You should try a very large data set. Every now and then the overhead in setting up a parallelization outweighs the effect of parallel processing. Using multiple CPUs is a relatively simple exercise. The situation will become worse when you use GPUs. The data transfer CPU->GPU->CPU is the critical part.
Apr
8
comment Functions, Options and Symbols
@ J.M. PlotRange is definitely dcumented only as an option. How did you figure this one out? It is also not a general means for retrieving Options values. Very nice.
Mar
14
comment Making Axes logarithmic in 3d plots
Maybe still more for future versions of Mathematica but the option ScalingFunctions -> {"Log", "Reverse"} has been introduced for Gauges, Histograms and BarCharts in version 9. Unluckily, it fails in number of instances. I reported this as an error a while ago. Since the implementation is very general, I cannot see why it should not also become available for all other Plot-related functions.
Mar
3
comment How do I change the way Mathematica pronounces English words (e.g. “futile” is not pronounced correctly)?
Here is another one: Speak["You are hoss-tile."]
Mar
2
comment How do I change the way Mathematica pronounces English words (e.g. “futile” is not pronounced correctly)?
I have not heard about Borgs in Berlin, but then who was JFK?
Mar
2
comment How do I change the way Mathematica pronounces English words (e.g. “futile” is not pronounced correctly)?
Collins collinsdictionary.com/dictionary/english/futile confirms the expected pronounciation.
Mar
2
comment How do I change the way Mathematica pronounces English words (e.g. “futile” is not pronounced correctly)?
A brilliant work-around. The orthography is deteriorating but the pronounciation is improving.
Feb
14
comment Forming Cone with Tube fails to work in version 9.0.1
Thanks for the comments and the workaround, I came up with another solution, but I have to admitt that 'Disk3D' had eluded me. I will reprot this as an error to Wolfram.
Feb
9
comment ScalingFunctions not working properly for x-axis
I mentioned a problem with ScalingFunctions in "mathematica.stackexchange.com/questions/16557/…; and reported a bug to Wolfram. This might be a more serious issue.
Jan
8
comment Import a file only if it contains a certain pattern
In Mathematica 9 ImageFileApply and ImageFileScan "can be used to read, process, and write successive blocks of data from a very large image file whose size could exceed available memory", i.e. to process without excessive loading.
Dec
13
comment What bugs have you found in mathematica 9?
If SE is the right place for good programming practice then it is definitely also a good place for bug reports.
Dec
4
comment Circular AngularGauge does not roll over boundaries
@ cormullion Yes, that is the reason. I would like to see the 0, 20, ... and 340.
Dec
4
comment Circular AngularGauge does not roll over boundaries
A magnetic compass is also a physical gauge and would certainly roll over.
Dec
4
comment Circular AngularGauge does not roll over boundaries
Trust me, I tried all the obvious stuff and I am aware of the the ScaleOrigin option. I want to see 90° at the top. In your response 360 and 0 are also printed on top of each other.
Nov
22
comment Insert $+$, $-$, $\times$, $/$, $($, $)$ into $123456789$ to make it equal to $100$
@xzczd Chris' solution may not be complete for your application but it should point you in the right direction.
Nov
21
comment How to retrieve the parameters calculated and used by ImageAdjust?
Thanks for the extensive answers. I conclude the question as answered. Maybe one could add another parameter to ImageAdjust in a future 9.x version such as {img, {c, b, gamma}} = ImageAdjust[..., "ReturnParameters"].
Nov
21
comment How to retrieve the parameters calculated and used by ImageAdjust?
Thank you very much. That is neat, is very well presented and works well. But a) it is not really what I asked for and b) it is fairly slow. The actual issue is, the values have already been calculated by ImageAdjust and I wonder if there isn't a simple way to get them with the adjusted image.
Feb
22
comment Switching off Dynamic updating on a cell by cell basis
When used with Dynamic[Refresh[DateString[], UpdateInterval -> 1]] Off works, but On does not. But evaluating the command restarts the code. Very nice, just what I was looking for.