Re: Coding for Mathematica

*To*: mathgroup at smc.vnet.net*Subject*: [mg100610] Re: Coding for Mathematica*From*: "Sjoerd C. de Vries" <sjoerd.c.devries at gmail.com>*Date*: Tue, 9 Jun 2009 03:55:58 -0400 (EDT)*References*: <h0i8dp$j7a$1@smc.vnet.net>

Just to be sure, you didn't enter all these In[ ] parts of your code yourself did you? Mathematica generates them automatically and they should not be typed by the user. After typing in, a command can be evaluated with shift-enter. If you continue to use Mathematica I'd urge you to read a bit of documentation. There are several overviews, and quick start tutorials in the documentation centre. Cheers -- Sjoerd On Jun 8, 7:43 am, FAQneeds <thegodfather7... at aol.com> wrote: > Im a first time user of Mathematica. So im trying to put in a command rel= ated to Newton's Method. I would just like to know if once im done typing t= his command in am i suppose to see the results immediately or do i have go = to something in the program to see the results of my command. Here is the C= ode please can anyone tell me what im doing wrong i will be really grateful= : > > In[1] :=(*your name,06/06/09*) > In[2] :=(*Newton's Method*) > In[3] := f[x_] := x^2 - 2 > In[4] := x[1] = 1.0 > In[5] := For[n = 1, n < 10, n++, > {x[n + 1] = x[n] - f[x[n]]/f'[x[n]]; > Print[n + 1, " ", N[x[n + 1], 10]];}] > In[6] := Plot[f[x], {x, 0, 2}]