Re: simple question for mathematica (corrected)

*To*: mathgroup at smc.vnet.net*Subject*: [mg106893] Re: simple question for mathematica (corrected)*From*: "Sjoerd C. de Vries" <sjoerd.c.devries at gmail.com>*Date*: Tue, 26 Jan 2010 06:35:37 -0500 (EST)*References*: <hjjqfo$92b$1@smc.vnet.net>

Hi Manolis, An easy question, so I expect to see at least 12 answers. Here are my two cents. 4 possible function definitions: Using piecewise (enter as esc-pw-esc or copy the below lines) ============ g[x_] := \[Piecewise] { {150, 0 < x < 15}, {x^3, 15 < x < 24} } With conditions =========== g[x_] := 150 /; 0 < x < 15 g[x_] := x^3 /; 15 < x < 24 With If[ ] ====== g[x_] := If[0 < x < 15, 150, If[15 < x < 24, x^3]] and Boole[ ] (which yields 1 if true and 0 if false ========================== ========= g[x_] := 150 Boole[0 < x < 15] + x^3 Boole[15 < x < 24] To Plot: ====== Plot[g[x], {x, 0, 24}, Frame -> True] Cheers -- Sjoerd On Jan 25, 12:06 pm, MANOLIS VOSKAKIS <emperor_... at hotmail.com> wrote: > we have a function that is divided in 2 sub equations > f=150 when 0<x<15 > f=x^3 when 15<x<24 > > how can i create a plot of this function in mathematica?? > i want all in 1 graph > > thanks alot > manolis