HP Prime Graphing NW280AAABA manual Define and solve the equations

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.

268 Linear Solver app