Basic Question - Printable Version +- HP Forums ( https://www.hpmuseum.org/forum)+-- Forum: HP Calculators (and very old HP Computers) ( /forum-3.html)+--- Forum: HP Prime ( /forum-5.html)+--- Thread: Basic Question ( /thread-7686.html) |

Basic Question - CloudHP - 01-30-2017 08:14 AM
If I wanted to find the roots and intersections between other graphs of the ellipse (4x^2 + y^2 = 1 for example), which app would I use to find the answers most easily? Function doesn't let you enter y in symbolic view. Advanced Graphing doesn't have the function tools that function has. Geometry doesn't either. Sorry for the basic question, but thanks for the help! RE: Basic Question - Han - 01-30-2017 12:35 PM
(01-30-2017 08:14 AM)CloudHP Wrote: If I wanted to find the roots and intersections between other graphs of the ellipse (4x^2 + y^2 = 1 for example), which app would I use to find the answers most easily? Use the Function app for actual functions (i.e. ones that can be defined in the form f(x)=blah). For everything else, use the Advanced Graphing function. In your case, since you want to use the tools that Function has, then you would probably need to convert 4X^2+Y^2=1 into two parts: Y=SQRT(1-4X^2) and Y=-SQRT(1-4X^2). The equation, in its original form, does not actually define a function. RE: Basic Question - CloudHP - 01-31-2017 03:10 AM
Oh okay, so I would need to convert it into a y = ... form to use the function capabilities. RE: Basic Question - Nigel (UK) - 01-31-2017 10:30 AM
(01-31-2017 03:10 AM)CloudHP Wrote: Oh okay, so I would need to convert it into a y = ... form to use the function capabilities. Note that Advanced Graphing does allow you to find intersections with axes and with other graphs - using Menu/Trace/PoI. Is this what you are looking for? Nigel (UK) |