default [x,t,theta,n] button variable help

[Liamtoh Resu]

Help!

When i press the [x,t,theta,n] button, I get an "a" on the command line instead of "x".
I am using the july, 2024 beta for the hp prime g2.

I have gone through many menu options, but I can't reset the default "x".

I was doing a solve type problem which in xcas notation is:
fsolve (integrate(x^2,x,0,a)=1000,a)

Any help would be appreciated.

[Joe Horn]

You are getting "A" when you press that key because your current app is Solve. The variable produced by the [x,t,theta,n] key depends on the current app. Look at the top of your screen to see which is the current app. Change to another app to use that app's default variable. For example, select the Function app to make that key type "X". Most apps yield "X". Solve yields "A". Parametric yields "T". Polar yields "Theta" (the character). Sequence yields "N".

Hope that helps!

[Liamtoh Resu]

Thanks for the help -- it was the first time I used the solve app.

BTW I just got an HP 40gs and I was trying the example from the hp39gs40gs-mastering-en.pdf,
page 324 available on the library.hpcalc.org site.

[Liamtoh Resu]

for the HP Prime it is neccesaru to put parenthesis around the left side for the
sample equation with the "=1000" outside of the parenthesis.

I found the following video on youtube which explains this "feature".

https://www.youtube.com/watch?v=Yj0m4CNJ-2g

The video credits "C Ret" for the solution. I could not find a link for the original post.

FYI