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Jul
15
comment How to simultaneously change the color and thickness in ContourStyle?
I think my parents had that wallpaper in the 70s :-)
Jul
5
comment 256 Shades of Grey
You might want to check the adjustment of your monitor, see here for example. Do you see the steps across the whole range from black to white or just at the black end?
Jun
26
comment How to color separate a colored-in-pencil drawing?
This might be useful for identifying the pencil colour.
Jun
25
comment Drop row if sum of part of row is equal to zero
@Mr.Wizard, one is so often torn between terseness and efficiency :-) My dream is one day to find a language in which the shortest code is always the fastest...
Jun
25
comment Drop row if sum of part of row is equal to zero
Nice use of SlotSequence. Shorter version: Pick[A,+##3!=0&@@@A]
Jun
25
comment Drop row if sum of part of row is equal to zero
@b.gatessucks, or DeleteCases[A, {_, _, z__ /; +z == 0}]
Jun
25
comment Drop row if sum of part of row is equal to zero
Use Equal (==) to test for equality, not Set (=)
Jun
24
comment Visualization: elliptical insights into data sets…
Pam, if you've come up with some code that answers the question, please post it as an answer (it's allowed, in fact positively encouraged, to answer your own question).
Jun
23
comment Solving a system with three equations and two variables
Voting to close as this is just basic errors of syntax
Jun
23
comment Solving a system with three equations and two variables
Try NSolve[{(Xsps[x, r]/Xppp[x, r])^2 == (0.076/0.120)^2, (Xssp[x, r]/Xppp[x, r])^2 == (0.076/0.102)^2}, {x, r}]
Jun
21
comment Improving ListContourPlot mesh triangulation
Look up FindDivisions for choosing tick positions.
Jun
14
comment How can I list all the 'countries 4000 km far from current location'?
@Szabolcs, I think this is an interesting question (we don't have any other answers on the site using GeoDestination) so I edited it to not be about W|A any more.
Jun
14
comment How can I list all the 'countries 4000 km far from current location'?
Looks like version 10 has this built in :-)
Jun
14
comment How can I list all the 'countries 4000 km far from current location'?
The reversal of lat, long is only for displaying the graphics. Perhaps it is best to say don't reverse any coordinates in loc or bounds, and use Polygon[Reverse /@ bounds] in the graphics.
Jun
14
comment How can I list all the 'countries 4000 km far from current location'?
Very nice, but to get the correct shape you need to keep loc as {lat, long} and do the Reverse after GeoDestination, i.e. bounds = Table[Reverse@GeoDestination[loc,...
Jun
12
comment Devising a sparse array rule
SparseArray[A -> 77] ?
Jun
11
comment Can I use Map here rather than Table?
Or Import[#1, {"Sheets", #2}] & ~MapThread~ {fileNames, sheetNames}
Jun
11
comment How would you efficiently implement BinListsBy?
@Mr.Wizard, this one?
Jun
11
comment Thread over uneven (ragged) expressions with full functionality?
@Rojo, thanks - good points.
Jun
10
comment Smooth 4D (3D + color) plot from discrete points
I think you missed the bit where you get from nf to colfun