A few questions:

03292022, 05:55 PM
Post: #1




A few questions:
1) How would I solve a system of equations to find the intersecting points of a circle and a line? If I use the solve app, it only gives me the points for one intersection, of the two that there are. Any idea how I would do this?
2) Is there a way I can covert back and fourth between decimal and scientific notation? I have seen multiple apps, but I'm not sure which one is the best, or most up to date. 3) Is there a way to analyze graphs to get stuff like the focal point or directrix of a parabola? 4) Is there a way to get the Fcn option that is available in the Function app to also show up in the Advanced Graphing app? 5) Is there a guide online or here somewhere for what all of the options do? I'm a pretty new user to this calculator and would like to learn more about it. 

01122023, 10:12 PM
(This post was last modified: 01122023 10:27 PM by jte.)
Post: #2




RE: A few questions:
(03292022 05:55 PM)LodSb Wrote: 1) How would I solve a system of equations to find the intersecting points of a circle and a line? If I use the solve app, it only gives me the points for one intersection, of the two that there are. Any idea how I would do this? Two of the builtin apps come to mind. With the Advanced Graphing app, this could be done by
⋮ (breaking my reply in two as there seems to be a limit of 5 images per post) 

01122023, 10:18 PM
(This post was last modified: 01122023 10:28 PM by jte.)
Post: #3




RE: A few questions:
⋮
With the Geometry app, this could be done by
The Symbolic view, after interacting with the Plot view: 

01132023, 01:59 PM
Post: #4




RE: A few questions:
What about simply using solve in cas:
solve([((x2)^2+(y2)^2) = 5,(2*x+y) = 4],[x,y]) which provides [x = ((1/5)*(sqrt(21)+6)),y = ((2/5)*(sqrt(21)+6)+4)],[x = ((1/5)*(sqrt(21)+6)),y = ((2/5)*(sqrt(21)+6)+4)] so both intersections. Arno 

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