I have an HP48 with it i solve some expression, but on HP-PRIME,
i don't find how to do the same :
example :
i have the electrical : U=R*I
i want to 'transform it' in CAS style,
ON HP48 i do this :
'U=R*I'
'I'
ISOL
then the calculator answer : I=U/R
How to do this on PRIME ????
Try solve(u=r*ii, ii) gives [ii=(1/r)*u]
I used the CAS do to this, and ii (because i is allocated (complex!)).
it's very strange, i do the same as you but my machine answer this :
{}
have you an idea ?
i know why :
teh rule seems in CAS only lower cas character allowed.
Now I have a question.
I'm running the same command again, from the CAS history,
and my output is in a different format, in curly brackets and without the equal sign and the variable to solve for.
{(1/r)*u}
I didn't change any flag settings (that I'm aware of). ????
Quote:
i know why :
teh rule seems in CAS only lower cas character allowed.
The upper case single characters are actually built-in variables. Upper-case variables such as MYVAR is fine.
Quote:
Now I have a question.
I'm running the same command again, from the CAS history,
and my output is in a different format, in curly brackets and without the equal sign and the variable to solve for.
{(1/r)*u}
I didn't change any flag settings (that I'm aware of). ????
I believe this is normal behavior (the HP Prime does not do everything in the same way as older calculators)
Yes, but when I first ran the command solve(u=r*ii, ii)on the Prime (CAS view) I got this:
[ii=(1/r)*u]
Now I get this on the exact same machine, with the same command solve(u=r*ii, ii), again in CAS view:
{(1/r)*u}
Strange.
What output format do you get?