Function intersection

01272022, 02:36 PM
Post: #12




RE: Function intersection
I checked on several functions that the HP Prime finds places where two different functions f (x) meet. If we have two functions: f (x) and g (x) and we create one function from them: f (x)  g (x) = 0 or g (x)  f (x) = 0, then it also finds the zeros of such functions. In the case of the analyzed functions, y = LN (x ^ 21) and y = x ^ 22, unfortunately, it does not define the contact points of both functions. This is an exceptional case. But when we create a function, e.g. y = x ^ 22LN (x ^ 21) or y = LN (x ^ 21) x ^ 2 + 2, then the calculator will find the zeros or extremum (because in in such cases, the null sites are also the extreme sites of function). See the screenshots.


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Messages In This Thread 
Function intersection  Jan 11  03232020, 10:26 AM
RE: Function intersection  jte  01072022, 11:20 PM
RE: Function intersection  lrdheat  01082022, 12:59 AM
RE: Function intersection  jte  01082022, 04:57 AM
RE: Function intersection  RobbiOne  01222022, 07:08 PM
RE: Function intersection  rawi  01232022, 05:33 PM
RE: Function intersection  OlidaBel  01272022, 11:08 AM
RE: Function intersection  Jan 11  01272022 02:36 PM
RE: Function intersection  Arno K  01242022, 04:45 PM
RE: Function intersection  Jan 11  01242022, 09:00 PM
RE: Function intersection  Arno K  01262022, 05:06 PM
RE: Function intersection  Jan 11  01262022, 07:59 PM

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