23,513 reputation
234109
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location St. Petersburg / Montpellier
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visits member for 2 years, 2 months
seen 4 mins ago

12h
revised Define Function with Sum over a list
added 164 characters in body
12h
comment Define Function with Sum over a list
Jinxed, you can be interested in this convenient browser addon.
12h
revised Define Function with Sum over a list
added 129 characters in body
12h
answered Define Function with Sum over a list
13h
answered Deleting or replacing inner elements depending on higher level elements
13h
reviewed Approve Floating point operations — division vs multiplication; how do they affect accuracy?
13h
revised Floating point operations — division vs multiplication; how do they affect accuracy?
added 1 character in body
13h
answered Floating point operations — division vs multiplication; how do they affect accuracy?
20h
comment 3D plot of concave data set
Possible duplicate: (36766)
1d
comment How can you set the scale ticks in a Gauge?
By the way, the simplest workaround is orizontalGauge[$countdownTimer/60, {sec, 0}/60, ...]
1d
comment Background of PlotMarkers
Could you provide a specific example for your plot? I have gray background of markers with PlotMarkers -> Automatic and transparent background with PlotMarkers -> None. It works for me (Linux, V10.0.1) but contradicts the docs, which say None = no markers.
1d
revised My code of plotting a two-variable function is too slow
formatting
2d
comment Mean Preserving PDF Spreading
+1, A bit more readable Mean[#] + N@Sqrt[k] (# - Mean[#]) &
2d
comment Finding all sublists or substrings of a given list/string
+1 For fast and clever solution. For strings it will be faster to write the same function with StringTake and StringLength.
Jan
25
comment Improving the look of a specific direction field
Generally StreamPlot looks better for me
Jan
24
comment LineScaledCoordinate problem for exact coordinates
@Kuba Yes! The level specification in Position was missed.
Jan
24
answered LineScaledCoordinate problem for exact coordinates
Jan
24
answered Why does ToRules return a Sequence?
Jan
24
answered Import table from txt file with specific rows
Jan
23
answered For a given expression: if it appears, remove it, but if it is absent, add it