Graphing y = x^(1/3)

*To*: mathgroup at smc.vnet.net*Subject*: [mg71991] Graphing y = x^(1/3)*From*: "Elizabeth" <eappelbaum at kc.rr.com>*Date*: Thu, 7 Dec 2006 06:25:51 -0500 (EST)

Message 22476 addressed how to graph functions like y = x^(1/3). Mathematica does not like graphing this function for negative x, and several methods are proposed. Here is a fast way to get a Mathematica graph. Instead of the original equation, use the equivalent equation y^3 = x which implicitly defines y as a function of x. First load the implicit function package Needs["Graphics`ImplicitPlot`"] Then order the graph ImplicitPlot [y^3 == x, {x, -5, 5}, PlotPoints -> 50, PlotStyle -> {Hue[.5]}, ImageSize -> 500, AxesLabel -> {x, y}] Also, I recommend at the beginning $TextStyle = {FontFamily -> "Verdana", FontSize -> 12} This command makes the text on the screen more legible.