[hp50g] is it possible to solve linear systems with unknown variables in it?

[Gjermund Skailand]

Hi
(small update)
Here's my take,

You could solve it by using Cramer's Rule

x = (DET [[ 0 2K], [2 -8]]) / (DET [[7 2K], [3K -8]] )

y = (DET [[ 7 0], [3K 2]]) / (DET [[7 2K], [3K -8]] )


rewrite it using SYST2MAT

[[7x 2Ky] [ x
[3Kx -8y=2]] y ]

SYST2MAT
then

thus M [ 'x' 'y'] -> x y

<< SYST2MAT ->COL DROP
-> C1 C2 C0
<< C0 C2 2 COL-> DET C1 C2 2 COL-> DET /
C1 C0 2 COL-> DET C1 C2 2 COL-> DET /
>>
>>
which gives
X = -4k/(6 K^2 + 56)
Y = 14/(6 K^2 + 56)


br Gjermund