Menus
Functions
Main Menu
1: Polynomial Root Finder
Open the Polynomial Root Finder app.
2: Simultaneous Eqn Solver
3: About
Display the home screen with the version number.
4: Poly Root Finder Help
Help file for Polynomial Root Finder.
Press y 5 to return to the Main Menu.
5: Simult Eqn Solver Help
Help file for Simultaneous Equation Solver.
Press y 5 to return to the Main Menu.
6: Quit App
Closes the app and returns to the calculator home screen.
Polynomial Root Finder Modes
Order
Set from 1 to 10.
Real / a+bi / re^θi
Real mode does not display complex results. If you select this mode setting and the answer is complex, the result displays as NONREAL.
a+bi (rectangular complex) mode displays complex numbers in the form
a+bi. You may need to press ~ to display all of the complex number.
re^θi (polar complex) mode displays complex numbers in the form of re^θi. You may need to press ~ to display all of the complex number.
Auto / Dec
AUTO displays answers in a similar format as the input. DEC displays answers as integers or decimal numbers.
Normal / Sci / Eng
Set the notation mode to Normal, Scientific, or Engineering.
Float
Floating decimal mode displays up to 10 digits, plus the sign and decimal.
Radian / Degree
Interpret angle values and display answers in radians or degrees.
Main
Display the main menu.
Help
Display the help screen.
Next
Go to the next screen – Polynomial coefficient entry.
Main
MAIN displays the main menu.
Mode
Return to the mode screen.
Clear
Clear all of the coefficient values that you have entered.
Load
Enter a list name that contains the coefficient values you want to use. You must set up the list in the list editor before you can use the list in the Polynomial Root Finder application. You cannot access the list editor while the application is running.
Solve
Main
MAIN displays the main menu.
Mode
Return to the mode screen.
Coeff
Change the coefficient.
Store
Store the coefficients to a list, store polynomial to Y= or store roots to a list.
Convert values from fraction to decimal.
Simultaneous Eqn Solver
Equations
Set the number of equations.
Unknowns
Set the number of unknowns.
Auto / Dec
AUTO displays answers in a similar format as the input. DEC displays answers as integers or decimal numbers.
Normal / Sci / Eng
Set the notation mode to Normal, Scientific, or Engineering.
Float
Floating decimal mode displays up to 10 digits, plus the sign and decimal.
Radian / Degree
Interpret angle values and display answers in radians or degrees.
Main
Display the main menu.
Help
Display the help screen.
Next
Go to the next screen – System of Equations.
Main
MAIN displays the main menu
Mode
Return to the mode screen.
Clear
Clear all of the matrix values that you have entered.
Load
Enter a matrix name that contains the matrix values you want to use. You must set up the matrix in the matrix editor before you can use the matrix in the app. You cannot access the matrix editor while the application is running.
Solve
Solve the system of equations. The entire solution may not fit on one screen. If an arrow displays on the left side of the screen, press † and } as necessary to view the entire solution. Each line of the matrix may not fit on the screen. Press ~ to scroll to the right to view the part of the line that is off the screen.
Main
MAIN displays the main menu.
Mode
Return to the mode screen.
Sysm
Display the system of equations screen so you can view or change the values.
Store
Store the system matrix or the solution matrix.
rref
Display the reduced row-echelon form of a matrix that has either no solution or infinite solutions.
Main
Display the main menu.
Back
Return to the solution set.
Sysm
Display the matrix entry screen so that you can view or change the values.
Store rref
Store the reduced row echelon form of a matrix to a matrix variable that you select.