38 HP Apps: Solvers and Explorers
HP Apps: Solvers and Explorers38
The Linear Solver App
The Linear Solver App solves 2x2 and 3x3 systems of linear equations within a single view. By default, the App opens ready to solve 3x3
systems. Note the square on the 3x3 menu key to indicate it is active. Press the 2x2 menu key to switch to solving 2x2 systems of linear
equations. The solution statement at the bottom of the App changes in real time to reflect the current values of the parameters in each lin-
ear equation. Table 13 summarizes the functionality of this App. Press Apps, scroll to the Linear Solver App, and press the START menu
key to get started.
Solution
To find the balloon payment due after 10 years of payments, scroll down the P column of the
table to P=10. There you will see that you will have repaid $22,835.53 in principal, as well
as paying $90,936.47 in interest. The fourth column in that row shows a balloon payment
of $127,164.19 due after 10 years.
Example 3 Solution
Press Plot to see a graphical representation of the amortization table. Use the left- and right-
cursor keys to move between payment groups. For each group, the payment numbers are
listed, as well as the principal paid (or invested) and the interest paid (or earned) during the
payment group.
Plot View
Table 12 Finance App Summary
Summary of Functionality View Name and Display
To Next Page
Loading...
