HP 50g Solve on object?

[Gilles]

(04-29-2019 09:22 AM)iainiain32 Wrote:  Hi all,
Just purchased a HP50g as I enjoyed using a HP12C and wanted more.

the HP50g is a jewel for me ;D
with your example the simplest way is :

'X+5' SOLVEVX

in 7 keystrokes

'
X+5 ENTER
LeftShift S.SVL
SOLVEVX

result :

X=-5

Another example in |R~ mode

'X^3.+7.*X^2.+9.*X-12.'
SOLVEVX

{ 'X=.791287847478' 'X=-3.79128784748' 'X=-4.' }

This works for rational expression. for non rational expression you can you the MSLV command. exemple

[ '√(x^2+y^2)=5' '√(2*a^2-(2*x+2*y)*a+(x^2+y^2))=3' '√(a^2-2*y*a+(x^2+y^2))=4' ]
[ 'x' 'y' 'a' ]
[ 3 3 6] @ initial guess
MSLV

result

[ 3.44599325458 3.62286219575 5.65390392093 ]