CasioTI-80 fx-7700GE
Casio fx-9700GE
Casio CFX-9800G
Casio CFX-9850G
Quadratic Formula Program
This program will display the solutions of a quadratic equation or the words “No Real Solution.” To use the program, write the quadratic equation in general form and enter the values of a, b, and c.
Casio fx-7700GE
Solutions to quadratic equations are also available directly from the Casio calculator’s EQUATION MODE.
QUADRAT “AX2 BX C 0”
“A=”?→A
“B=”?→B
“C=”?→C B2 4AC→D
D<0 Goto 1 (-B D) (2A)
(-B D) (2A) Goto 2
Lbl 1
“NO REAL SOLUTION” Lbl 2
Casio fx-9700GE
Casio CFX-9800G
Casio CFX-9850G
Both real and complex answers are given. Solutions to quadratic equations are also available directly from the Casio calculator’s EQUATION MODE.
QUADRAT “AX2 BX C 0”
“A=”?→A
“B=”?→B
“C=”?→C B2 4AC→D
(-B D) (2A)
(-B D) (2A)
Systems of Linear Equations Program
This program will display the solution of a system of two linear equations in two variables of the form
ax by c
dx ey f
if a unique solution exists. Solutions to systems of linear equations are also available directly from the Casio calculator’s EQUATION MENU.
SOLVE “AX BY C” “A=”:?→A “B=”:?→B “C=”:?→C “DX EY F” “D=”:?→D “E=”:?→E “F=”:?→F AE DB 0 Goto 1
“X=”:(CE BF) (AE DB)
“Y=”:(AF CD) (AE DB) Goto 2
Lbl 1
“NO UNIQUE SOLUTION” Lbl 2
Graph Reflection Program
This program will graph a function f and its reflection in the line y x. To use this program, enter the function in f1.
Casio fx-7700GE
To use this program, enter the function in f1.
REFLECT
“GRAPH -A TO A” “A=”?→A
Range -A,A,1,-2A 3,2A 3,1
Graph Y f1 -A→B
Lbl 1
B→X Plot f1,B
B A 32→B B≤A Goto1:Graph Y X
Casio fx-9700GE
To use this program, enter a function in f1 and set a viewing rectangle.
REFLECT
63Xmin 127→A 63Xmax 127→B Xscl→C
Range , , , A, B, C (Xmax Xmin) 126→I Xmax→M
Xmin→D Graph Y f1
Lbl 1
D→X
Plot f1,D
D I→D
D≤M Goto 1:Graph Y X
Casio CFX-9800G
To use this program, enter a function in f1 and set a viewing rectangle.
REFLECT 63Xmin 95→A 63Xmax 95→B Xscl→C
Range , , , A, B, C (Xmax Xmin) 94→I Xmax→M Xmin→D
Graph Y f1
Lbl 1
D→X
Plot f1,D
D I→D
D≤M Goto 1:Graph Y X
Casio CFX-9850G
Use the program for the Casio fx-9700GE and replace the line “Range , , , A,B,C, ” with
“View Window , , , A,B,C, .”
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