HP Prime Graphing Calculator - Manual (Page 270)

266 Linear Solver app
N o t e If the last time you used the Linear Solver app you solved
for two equations, the two-equation input form is
displayed. To solve a three-equation set, tap ; now
the input form displays three equations.
Define and solve
the equations
2. You define the equations you want to solve by
entering the coefficients of each variable in each
equation and the constant term. Notice that the cursor
is positioned immediately to the left of x in the first
equation, ready for you to insert the coefficient of x
(6). Enter the coefficient and either tap
or
press E .
3. The cursor moves to the next coefficient. Enter that co-
efficient and either tap or press E .
Continue doing likewise until you have defined all the
equations.
Once you have
entered enough
values for the
solver to be able
to generate
solutions, those
solutions appear
near the bottom
of the display. In
this example, the solver was able to find solutions for
x, y, and z as soon as the first coefficient of the last
equation was entered.
As you enter
each of the
remaining known
values, the
solution changes.
The graphic at
the right shows
the final solution
once all the
coefficients and constants had been entered.