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Re: Domain of function
Posted:
Dec 20, 2013 6:53 PM


TideMan <mulgor@gmail.com> wrote in message <a04d61619eb6494db35ee11650d77752@googlegroups.com>... > On Tuesday, December 17, 2013 3:40:18 PM UTC+13, Nikola Kal wrote: > > First of all sorry because of my bad English :) > > > > > > > > How can i get domain of function? > > > > For example domain of function sqrt(x3) is x>=3 > > > > Or domain of function log(x1) is x>1 etc. > > > > Thank you for all help... > > Matlab is quite happy evaluating log(1) or sqrt(3) or even log(inf). > So, the domain for these functions is infinite. > > So I guess what you mean is, you want the REAL domain? > Yes, i'm looking for real domain. There are examples: 1.domain of function sqrt(x3) is x>=3 2.domain of function log(x1) is x>1 3.domain of function asin(x+1) is 1<=x+1<=1 4.domain of function acos(3*x+1) is 1<=3*x+1<=1, etc. So, if you understand can you help me? Big thanks in advance.



