Geometry App - reboot problem

[ChrisHP]

In the gemoetry app, if I plot a curve, such as x^2-2, and view it, it's just fine.

If I then select cmds -> Line -> tangent, as soon as I select the curve the calculator reboots

What am I doing wrong????

(running latest version of firmware)

[ChrisHP]

Could somebody please just confirm if this is a problem for them, or does it work ok on your machine? Crashes both Prime and Emulator for me

[eried]

How are you entering the curve equation? It works ok for me if I draw a curve with the touchscreen

For me, Geometry and the spreadsheet are the buggiest parts of the calculator. Not being able to enter the points precisely in "Plot" for the geometry just kills it for me. I just try to stay away of these and embrace Advanced Graphing

[ChrisHP]

I'm using the Geometry App in Symbolic, to Plot a Function (x^2)

Then in the Plot view, adding Line - Tangent, and as soon as I click the x^2 curve to attach the tangent too - bang it crashes.

There is blog of a guy doing exactly this a few years back, so I guess I'm doing something wrong.

Tangents work just fine on a circle, but not on a function. This is so simple, I can't believe it would still be a bug given how long the calculator has been around

[eried]

(03-16-2017 09:11 PM)ChrisHP Wrote:  I'm using the Geometry App in Symbolic, to Plot a Function (x^2)

Then in the Plot view, adding Line - Tangent, and as soon as I click the x^2 curve to attach the tangent too - bang it crashes.

There is blog of a guy doing exactly this a few years back, so I guess I'm doing something wrong.

Tangents work just fine on a circle, but not on a function. This is so simple, I can't believe it would still be a bug given how long the calculator has been around

Yeah, hangs for me too.

[ChrisHP]

No, but won't do what I want.

The idea is that the tangent creates a table of x values against slope, which I can use with students to get them to work out the original equation by plotting the differential.

This is exactly what I have seen working (albeit about 2013/14), so I guess a later firmware update has introduced the bug.

How do I report bugs to HP? And do they take any notice?

[eried]

(03-16-2017 09:22 PM)ChrisHP Wrote:  No, but won't do what I want.

The idea is that the tangent creates a table of x values against slope, which I can use with students to get them to work out the original equation by plotting the differential.

This is exactly what I have seen working (albeit about 2013/14), so I guess a later firmware update has introduced the bug.

How do I report bugs to HP? And do they take any notice?

Maybe thru HP forum: http://h30499.www3.hp.com/t5/Calculators/bd-p/bsc-408

but I am pretty sure they will see this message here too. TW, Cirille, etc

[ChrisHP]

Ok - thnx

[eried]

Actually, I was checking your issue again, and it seems you can input everything thru the Symb screen. No hangs.

I used:
GA:= plotfunc(x^2);
GB:= tangent(GA,some point like 2);

[Tim Wessman]

I've seen a problem like you report, and then had it work fine for me the next few. Something funny is definitely going on.

It is on the list to investigate. Thanks!

[EdDereDdE]

right, and it happens on the Android app as well ...
Reported this via app crash feedback.
But does this help?
I doubt ...

[Tim Wessman]

(03-17-2017 12:33 AM)EdDereDdE Wrote:  right, and it happens on the Android app as well ...
Reported this via app crash feedback.
But does this help?
I doubt ...

It generally takes several days to filter through to us...

[math7]

The same thing happens to me, the calculator hangs up !!! Let's hope for a solution soon.

[EdDereDdE]

(03-17-2017 01:36 AM)Tim Wessman Wrote:  It generally takes several days to filter through to us...

Sure Tim, I don't expect fixes or feedback within minutes
Finding and fixing issues in such a complex piece of software takes time.

[ChrisHP]

(03-17-2017 08:57 AM)EdDereDdE Wrote:  

(03-17-2017 01:36 AM)Tim Wessman Wrote:  It generally takes several days to filter through to us...

Sure Tim, I don't expect fixes or feedback within minutes
Finding and fixing issues in such a complex piece of software takes time.

After the problem is reproduced, and fix worked on - how long does a firmware update take to be released?

[amindanial]

Unfotunately, Geometry App. still causes reboot on HP Prime G2 revision D. This reboot occurs randomly without a clear pattern at least for me.