Enter the equations in the left hand box using the syntax of the
example. The unknowns must be called x1, x2, etc.
Each new equation should be on a separate line, with unknows on the
left hand side, and constants on the right hand side
Click `Solve'.
The solution will appear in the right hand
box.
Saving this window will not save the contents of the boxes, but you may use the `Copy' and `Paste' keys to copy your equations and/or solution
from there to another document.