HP 39gII Quick Start Manual page 45

Table 13 Linear Solver App Summary
Summary of Functionality
Use this view to enter values for the parameters of each linear equation and view the
solution results below the equations. The menu items are:
• EDIT: opens an input box to edit the chosen value
• 2x2: solves a 2x2 system of 2 linear equations in 2 variables
• 3x3: solves a 3x3 system of 3 linear equations in 3 variables
Example
Find the solution of the linear system:
5x + 2y = 8
3x - y = 7
Solution
Press the 2x2 menu key to activate the 2x2 input form and enter the parameters of both
equations, as shown in the figure to the right. As you enter the values, the solution statement
updates in real time. When you are done, the solution is shown as x=2 and y=- 1 .
View Name and Display
3X3 Linear Solver
2X2 Linear Solver
Example Solution
HP Apps: Solvers and Explorers 39