Re: simple question for mathematica tool

*To*: mathgroup at smc.vnet.net*Subject*: [mg106875] Re: [mg106817] simple question for mathematica tool*From*: Bob Hanlon <hanlonr at cox.net>*Date*: Mon, 25 Jan 2010 05:10:17 -0500 (EST)*Reply-to*: hanlonr at cox.net

f[x_] = Piecewise[{ {150, 0 < x < 15}, {x^3, 15 < x < 24}}]; Plot[{f[x], f'[x]}, {x, 0, 24}, PlotStyle -> { Directive[Blue, Thick], Directive[Red, Thick]}, Frame -> True, Axes -> False] Bob Hanlon ---- MANOLIS VOSKAKIS <emperor_mvs at hotmail.com> wrote: ============= we have an equation tha is divided in to sub equations f=150 when 0<x15 f=x^3 when 15<x24 how can i create a plot in mathematica?? i want all in 1 graph thanks alot manoli