Student Support Forum: 'solving two equalities with one variable' topicStudent Support Forum > General > "solving two equalities with one variable"

 Next Comment > Help | Reply To Topic
 Author Comment/Response Ampi 05/20/08 05:38am This should be easy but somehow I can't get it to work. I have two functions (f and g). Both depend on x and four other parameters (alpha, beta, gamma and delta). I am interested in the points where f=g and f'=g'. I need the value of x and delta in that point (there are two of these points). I have tried different things. One of them being first equating f=g, and then plugging the outcome one by one in the equality f'=g', but still that doesn't work, especially when I go numerical (I need both the 'big' analytical outcome and the numerical one). In case necessary, here are my functions: f[x_] := 1 + \[Alpha] x - \[Beta] x - \[Alpha] \[Beta] x^2 g[x_] := x/(\[Delta] (1 + \[Alpha] x)) - \[Gamma]/\[Delta] URL: ,

 Subject (listing for 'solving two equalities with one variable') Author Date Posted solving two equalities with one variable Ampi 05/20/08 05:38am Re: solving two equalities with one variable Randy Silvers 05/26/08 02:59am
 Next Comment > Help | Reply To Topic