def functions on advanced graphing

04112018, 09:35 PM
(This post was last modified: 07272018 11:24 PM by compsystems.)
Post: #1




def functions on advanced graphing
Hello, I want to define two functions for the application advanced graphing from history view.
purge(X,Y); from HOME V1(X,Y):=X2*Y=7; V2(X,Y):=5*X3*Y=2; returns Error: Invalid input from CAS V1(X,Y):=X2*Y=7; V2(X,Y):=5*X3*Y=2; returns (X,Y)>false,(X,Y)>false solve([V1(X,Y),V2(X,Y)],[X,Y]) returns [X,Y] ? although pressing the SYMB button the definitions of the functions are well defined How can I define or externally delete the variables of the applications? 

04112018, 09:47 PM
Post: #2




RE: def functions on advanced graphing
I simply tried V1:="X*Y=2" which works in Home as well as in CAS.
Arno 

04112018, 10:07 PM
(This post was last modified: 07272018 11:33 PM by compsystems.)
Post: #3




RE: def functions on advanced graphing
but on CAS V1:="X*Y=2" returns (X,Y)>false
same for V1:=' X2*Y=7' returns (X,Y)>false V2:=' 5*X3*Y=2' Advanced_Graphing.V1(X,Y):= X2*Y=7; returns (X,Y)>false (CAS) Error: Invalid input (Home) Advanced_Graphing.V2(X,Y):= 5*X3*Y=2; CAS("V1(X,Y):=X2*Y=7") returns program([0.,0.],[0.],false) CAS("V2(X,Y):= 5*X3*Y=2") and how do I eliminate them then the variables V1, V2 purge(Advanced_Graphing.V2); // not work HOME purge(X,Y); Advanced_Graphing.V1(X,Y):= 'X2*Y=7' => Error: Invalid input Advanced_Graphing.V1:='X2*Y=7' // ok purge(X,Y); Advanced_Graphing.V2(X,Y):= '5*X3*Y=2'; Advanced_Graphing.V2:= '5*X3*Y=2'; // ok 

04122018, 06:18 AM
(This post was last modified: 04122018 06:20 AM by Arno K.)
Post: #4




RE: def functions on advanced graphing
Advanced_Graphing.V1:="X*Y=3" works from where I tried to fill that in V1, deleting is as simple as entering: Advanced_Graphing.V1:="", but you have to use strings to get that done, not quotes nor anything else.
Arno 

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