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+--- Thread: HP Prime: Isolate a variable in an equation (/thread-184.html)
HP Prime: Isolate a variable in an equation - Davidro - 12-20-2013 10:34 PM
Hello friends:
How to isolate a variable in an equation on HP Prime? Can anyone guide us? Searched the Guide and not found.
Thank You
David
RE: HP Prime: Isolate a variable in an equation - CR Haeger - 12-20-2013 10:58 PM
I'm not an expert but I tend to use the solve() command in CAS mode. For example
Solve(x+y=4,y) should return 4-x.
Good luck.
RE: HP Prime: Isolate a variable in an equation - Helge Gabert - 12-20-2013 11:00 PM
In CAS view, solve() should be of help.
E.g., solve(x^2-4*y*x=3,y) returns {(-x^2+3)/(4*x)}
Or solve(x^2-4*y*x=3,x) returns {2*y+-sqrt(4*y^2+3)}
Is that what you are after?
RE: HP Prime: Isolate a variable in an equation - Davidro - 12-21-2013 01:26 AM
(12-20-2013 10:58 PM)CR Haeger Wrote: I'm not an expert but I tend to use the solve() command in CAS mode. For example
Solve(x+y=4,y) should return 4-x.
Good luck.
Thanks friends:
That's what I need. But, using this command with different variables X and Y, appears a recommendation that doesn't work either. Another observation is that the result is not symbolic when the variables are different from X and Y.
Grateful
David
RE: HP Prime: Isolate a variable in an equation - Helge Gabert - 12-21-2013 02:01 AM
You need to type in lower case variables.