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visits member for 2 years, 6 months
seen 9 hours ago

The "WR" in my name has nothing to do with the company that develops Mathematica.


9h
answered AssociationMap to query Dataset across levels?
19h
comment Mathematica 10 : Where is the Mathematica Book?
This is a duplicate of Where (have) the “Function Navigator” and “Virtual Book” gone?.
1d
answered Populate an upper triangular matrix from a vector of elements
Jul
22
answered Get the last line from from each of a large number of files, transform them, and write all results to a single new file
Jul
21
comment Report: IgnoringInactive: a bug?
On a related note, MatchQ[1, IgnoringInactive[0]] and MatchQ["a", IgnoringInactive["b"]] both return True instead of False (reported to WRI).
Jul
21
awarded  Informed
Jul
19
answered Caesar's cipher
Jul
18
awarded  Nice Answer
Jul
11
awarded  Enlightened
Jul
9
awarded  Good Answer
Jun
27
comment Can TreeForm be displayed “sideways”?
@alancalvitti Thanks for the pointer. The docs say that the functionality has been moved to the core system, but I see no sign of it in the WolframCloud. I'll try to remember to check V10 when it comes out and update my response accordingly.
Jun
25
awarded  Nice Answer
Jun
25
revised Error message: Coordinate index 0 is out of range for the enclosing GraphicsComplex
noted that the question had been changed
Jun
25
comment Error message: Coordinate index 0 is out of range for the enclosing GraphicsComplex
The data has changed, but the principle is the same. poly contains zero-based indices (0-95) but they must be one-based (1-96). The simplest corrective action is something like Graphics[GraphicsComplex[coord, Polygon[poly + 1]]]. However, I find it suspicious that poly contains degenerate polygons with coincident corners (e.g. {0, 0, 0} or {1, 0, 1}).
Jun
25
answered Error message: Coordinate index 0 is out of range for the enclosing GraphicsComplex
Jun
25
answered How can I add a column into a existing Dataset?
Jun
20
revised multiple sequential definitions, defining own set function
added missing word
Jun
20
answered multiple sequential definitions, defining own set function
Jun
6
awarded  Custodian
May
29
awarded  Necromancer