Re: variables...

[Joao Cardoso]

Adam Balgach wrote:
> 
> Ok, lets say i define a variable...
> 
> f = "3*x^2+4*x+5"
> Octave changes that to f = 3*x^2+4*x+5 and im assumming that f is now a
> string (?)

octave:71> f = "3*x^2+4*x+5"
f = 3*x^2+4*x+5

octave:72> isstr (f)
ans = 1

> how would i go about searching for the positions of "x" in that string? im

octave:73> f == 'x'
ans =

  0  0  1  0  0  0  0  0  1  0  0

octave:74> find(f == 'x')
ans =

  3  9


> thinking way back to old basic commands like "left()" but i cant find any
> here in octave.  any thoughts? (also how would i display that string...when
> i define f as about and try..
> 
> fprintf("string: "+f+"\n"); i get a ton of errors.

octave:75> printf("%s\n",f);
3*x^2+4*x+5

> 
> thanks

looks like you need to RFM :-) (or the online help)

Joao

> 
> adam balgach
> address@hidden
> 
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