[HP-Prime - Geometry App] What is wrong with this ? « Next Oldest | Next Newest »

 ▼ Jean-Michel Member Posts: 191 Threads: 41 Joined: Jun 2007 10-27-2013, 05:09 PM Hello I'm trying to draw a circle circumscribed to a triangle (manually, not by using the pre-programmed function) Here is the content of the SYMB view (on the real calc): GA:=point(77.4,32.1) GB:=point(-44.2,-204.8) GC:=point(338.2,-145.4) GE:=segment(GA,GB) GG:=segment(GB,GC) GH:=segment(GC,GA) GD:=triangle(GA,GB,GC) GI:=perpen_bissector(GE) GJ:=perpen_bissector(GG) GK:=perpen_bissector(GH) GL:=inter(GI,GJ) GN:=circle(GL,GA-GL) --> that line does not draw anything Not only it does not work in PLOT view, but also in SYMB view. I can draw any circle involving whatever vertices of the triangle, but not any involving the INTERsection point L, whatever it would be the center or a point of the curve. Help much appreciated Kind regards. ▼ Edwin Junior Member Posts: 9 Threads: 0 Joined: Sep 2012 10-27-2013, 05:41 PM the command inter() does not return a point, it returns a vector of points, try better single_inter. ```... GL:=single_inter(GI,GJ) ... ``` ▼ Jean-Michel Member Posts: 191 Threads: 41 Joined: Jun 2007 10-27-2013, 06:26 PM Many thanks Edwin. Too bad this instruction was deeply hidden in the User's Guide. My fault not having read it thoroughly enough. Kind regards.

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