Mathematica 应用技巧 Part 1

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9        :        Define a function that remembers its previous results, by using := and = together: f[n_] := f[ n] = Integrate[Sin[t^n], {t, 0, 1}] 转自Twitter#Mathematica Tip#
8        :        How's the weather? Get current data for your location on the Earth: WeatherData[FindGeoLocation[], "Temperature"] 转自Twitter#Mathematica Tip#
7        :        Redecorate your graphics with custom lighting: Show[KnotData["FigureEight"], Lighting -> {{"Point", Purple, {0, 4, 5}}}].  转自Twitter#Mathematica Tip#
6        :        @matthen2 Those are great Mathematica examples on your blog! 转自Twitter#Mathematica Tip#
5        :        @metawops The notation # (or #1) with & is shorthand for Function. # (or #1) represents the first function argument.  转自Twitter#Mathematica Tip#
4        :        For approximate numbers, Precision is the number of digits. Accuracy is the number of digits after the decimal point.  转自Twitter#Mathematica Tip#
3        :        Press Ctrl+K (Mac: Cmd+K) to complete a partial function name. Ctrl+Shift+K (Mac: Cmd+Shift+K) also shows a template for using the function. 转自Twitter#Mathematica Tip#
2        :        Plot trig functions in degrees instead of radians: Plot[{Sin[x °], Cos[x °]}, {x, 0, 360}].  转自Twitter#Mathematica Tip#
1        :        Top 10 countries by coastline length: Take[SortBy[CountryData[All], -CountryData[#1, "CoastlineLength"] & ], 10].  转自Twitter#Mathematica Tip#

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