HP 50g LINSO Linear Solver for System of Equations

[Carsen]

(07-14-2018 02:38 PM)rprosperi Wrote:  Flags: Exact mode must be set (flag –105 clear)
Numeric mode must not be set (flag –3 clear).

Saying YES to "Approx. mode on?" turns-off exact mode.

Tagging off of rprosperi, it's probably requesting to turn on approx. mode because your equation has real numbers in them and not integers. A real number is any number with a decimal point in it. Therefore, to prevent the calculator from forcing you into approx. mode, make sure that your numbers like 5, -3, & 1 have no decimal points in them at all. If you key in your equations in exact mode, then they will integers. So just switch into exact mode before keying in the equations.

As other members pointed out, this is not a linear system of equations. Use the SOLVE command (The one on the F6 key) in the S.SLV menu and you should get the answer of [X=2, Y=1] & [X=-1 Y=-2]

This is a snip of the HP 50g graphing Calculator user's guide summarizing that I found extremely useful.