Is Geometry.Instruction(n) buggy?

[Angus]

hello everyone

I kept playing with Instruction() and noticed that adding a String to the command table is not possible. Giving an error when Geometry app is active.

with Geometry App active
Geometry.Instruction(1):="x" ---> "Error:Invalid Input"

with other app active, say Function
Geometry.Instruction(1):="x" ---> table(1 = "x"), but when going to Geometry/Symb there is no entry visible.


If n==0 Instruction(0) should append a String to the list.
Now Geometry.Instruction(0):="x^2" ---> table(1 = "x", 0="x^2"), still nothing visible and also "Error:Invalid input"...



Is there a chance I did not understand Geometry.Instruction(n):=STRING correctly or do we have to consider that one buggy?

[Han]

Possibly... try creating the instruction in sequence (in CAS view).

Assuming that there are no instructions; or simply use DelInstruction to clear it all.

Instruction(1,2):="GA"; // name it GA
Instruction(1,3):=plotfunc(x^2); // define it to plot x^2

Hit the plot key.

[Angus]

Cool! Sequential entry works, so interaction with Geometry App is at least possible. Hopefully I'll find some time to enhance my programming skills and start working on a frontend for plotting functions and expressions from cas that suits my desires.