CASIO GAUSS & GAUSS-JORDAN ELIMINATION
Although one can solve a system of equations using the EQUA function, the CFX-9850 Plus will not do ref and it will not display a matrix in ref or rref format. Since students in classes such as college algebra often have the TI-83 which does ref and rref, this program was designed to give the Casio CFX-9850 Plus the capability to convert a matrix to ref (row-echelon form) or rref (reduced row-echelon form) using a format similar to the TI-83. This program, REFRREF1, must have the Casio program ROWREDA activated in order to do rref. To activate that program do this: Go to the PRGM Icon and press EXE; Press F6; then F5; scroll down to U.S.A and press EXE; scroll down to ROWREDA and press EXE. The program will now be loaded.
Running the Program: Unlike several of my other programs, the student does not participate in this program other than to
enter the matrix in position A and select either rref or ref. As usual
when entering a new matrix, I recommend entering each number anew rather than
just replacing the changes in the previous matrix.
Use of this Program: You may
use this program freely for your own personal use and for
the use of other students, but use for publication or any means of profit
requires my permission.
Versions: Version V1.0 was entered on 8/30/03; version V1.1 was entered on 9/30/04. The basic idea of execution has not changed.