31,900 reputation
869168
bio website nl.linkedin.com/in/scdevries
location Utrecht, Netherlands
age
visits member for 2 years, 8 months
seen 33 mins ago

Email: "1:eJxTTMoPCpZiYGAozspPLUrRS9ZLSS0rykwtdkjPTczM0UvOzwUAvgoLoQ=="


4h
comment How to produce a chasing-view in Mathematica?
And perhaps 14480
8h
comment Bug? Side effects when exporting to .mx
No problem on V10.0.1, Win7-64
17h
comment How could I visualize a rotating cone within a sphere?
I don't have any time left. I don't think Cone will work because it always ends in a point. Try varying on Graphics3D[{CapForm["Butt"], Tube[{{0, 0, 0}, {0, 0, 1}}, {1.0, 0.4}]}]
17h
comment How could I visualize a rotating cone within a sphere?
Values for rds and c?
17h
comment How could I visualize a rotating cone within a sphere?
I might have confused you there; it's Pi not P :-)
18h
comment How could I visualize a rotating cone within a sphere?
A few errors that I noted right away: the Euler number should be written with a capital E or as esc-ee-esc. Pi should be written with a capital P or as esc-p-esc. Missing underscore after djet in the definition of w1 and area. Also, you can't assign a number to a ratio of variable like you do in the last line (dair/djet = 0.402). And R is undefined. Furthermore, you have both a function named b and a variable named b.
18h
comment Trigonomery problem
You probably meant to post this on math.stackexchange.com which is about mathematics. This site is about the software product called Mathematica
18h
comment How to SemanticImport Multiple Excel Sheets
ReplaceAll (/.) looks at every part of the expression, not only the outermost part.
18h
comment How to get Company Logo or Image
@eldo The point is that the OP is trying to get the logo through CompanyData (which, if you follow the documentation, seems to be possible), and I'm explaining why that doesn't succeed in the specific example he has chosen. I show that it works for other firms. Your update totally misses the point indeed.
20h
comment How to SemanticImport Multiple Excel Sheets
@Edmund I just timed it and it doesn't seem there is really much of a difference.
20h
comment How to SemanticImport Multiple Excel Sheets
@Edmund They are functionally equivalent. ? is PatternTest and performs the test that follows it on the matched (!) pattern that precedes it. I would expect the test DateObjectQ to be somewhat slower in this case, but I might be mistaken.
1d
comment How to SemanticImport Multiple Excel Sheets
@edmund x:DateObject[__] just means anything with Head DateObject which we will name x (could also have been written as x__DateObject). Import generates such DateObjects for Excel date fields, and the following Export doesn't handle that in such a way that in can be easily be imported again.
2d
comment Mathematica 10 crashes on copy/paste
On V10.0.1 FormulaLookup["gas"] yields Missing["NotAvailable"] for me.
2d
comment Mathematica 10 Graph issue
Still there in 10.0.1
2d
comment Sqrt disappeared when exporting plot to PDF in version 10
Present in 10.0.1 as well.
2d
comment PlotMarkers problem in ErrorListPlot, Mathematica 10
It's still there in 10.0.1, alas.
2d
comment Bug in handling backslashed Cyrillic symbols in v.10.0.0?
In 10.0.1 I get three slashes in both cases.
2d
comment Potential pollution of Global` context in fresh kernel
Seems to be solved in V10.0.1 (Win7-64).
2d
comment Is there a bug in AssociatePairs?
Error persists in 10.0.1.
2d
comment BaseStyle ->AbsoluteThickness[somenumber] doesn't work in version 10?
Interesting effect if you try 100 instead of 5...