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Free programs for your calculator
Programs for most current Casio models!
Download programs direct from this page for FX7400, CFX9850, FX1.0 and FX2.0 series. All are saved in *.cat format  100% compatible with the official Casio FA122/3 PCCalculator software. Please email charlie @ charliewatson . com if any program fails to perform as expected after checking below for recent debugs/updates.
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Download programs and games straight off the net into your calculator with a mail order PC  Calc cable You can also free up your calculator memory by storing notes, programs, etc on your PC. Also available are calculator to calculator cables.
Free software Casio Solutions recommends you download the free Casio FA122 software to use with CFX and FX7400G+ models and FA123 software if you use an Algebra FX model. (FA123 will also work with both CFX and FX7400G+ models, but it will corrupt certain commands and text.)
Blame Bill if your programs now think they're security catalogs! Installing IE5 registers the *.cat extension as a security catalog file type  which means doubleclicking a program now fails to open it. See technical links for help to restore things the way they were!
How to download! Try one click on the download button. If your FA122/3 software opens automatically with the programs then fine. If anything else happens (eg white screen full of program code or error message about invalid security catalog) then return to this page, rightclick the download button, save the programs onto your computer, start the FA122/3 software and open the saved programs through the software.

Group 1 
Size 
Author 
Last Updated 


Discrete 
19kb 
Charlie Watson 
15/03/2004 



This set of programs was written for the Western Australian Discrete Mathematics course. (Also has copy of NUMSEQS). 


Individual programs in these files: 


AP 

Preview Finds, solves and tabulates arithmetic progressions. See Graphic Calculator Series by OT Lee for Discrete Mathematics to learn about this program and also GP below. 


FINDRULE 

New! Finds best rule y=f(x) (from linear, power, quadratic or exponential) when at least 2 points stored in List1(x) and List2 (y). 


GP 

Preview Finds, solves and tabulates geometric progressions. See Task 4  Using the GP program or the link above to OT
Lee. 


GTHDECAY 

Preview Updated! Enter two or more data points to find the equation of exponential growth or decay in the form y = a(r)^{x} 


LINEAR 

Preview Equation of a straight line from gradient and point or two points. 


MAV 

Updated! Enter time series in Lists 1 and 2, set period and this program returns graphs, moving averages, residuals, seasonal components, future values, etc. See Task 3 for worked example. 


REPAY 

New! Updated! Generates complete loan repayment table (or individual row of table) for typical Discrete problems such as a loan of $1000 at 7%pa is repaid by monthly installments of $80. 



Group 2 
Size 
Author 
Last Updated 


Calculus 
13kb 
Charlie Watson 
15/03/2004 



This set of programs was written for the Western Australian Calculus course. 


Individual programs in these files: 


CMPLXNUM 

Preview Enter complex number z in either cartesian or polar form and then convert between forms, find n^{th} power, list n^{th} roots and evaluate e^{z}. 


DOTPROD 

Preview Dot product of two vectors. 


EXACTVAL 

Preview Displays exact values of sin, cos and tan from 0 to 180 degrees. 


LOGBASE 

Converts logs to different bases. 


NWTNRAPH 

Preview First store f(x) in Y1. Program then solves f(x) = 0 using NewtonRaphson method, displaying all iterations. 


NWTRPHTT 

Preview Same as NWTNRAPH but also animates iterations graphically. See Task 5  Investigating when the iteration fails. 


PBISECT 

Returns equation of perpendicular bisector of two points. 


POLYDIV 

Divides any two polynomials, returning quotient and remainder. See Sheet 11 for worked examples. CFX9850G version. 


POLYDIV+ 

Divides any two polynomials, returning quotient and remainder. See Sheet 12 for worked example. CFX9850G+ and later version. 


POLYMLT+ 

Multiplies any two polynomials (any order) together. See Sheet 12 for help. CFX9850G+ and later version. 


POLYMULT 

Multiplies any two polynomials (any order) together. See Sheet 11 for worked examples. CFX9850G version. 


TRIGSOLV 

Solves sin, cos or tan(A) = x over your chosen range (in either degrees or radians). Solutions displayed in rows with first column degrees, second column radians and third column exact multiples of pi (where possible). 



Group 3 
Size 
Author 
Last Updated 


Applicable 
19kb 
Charlie Watson 
15/03/2004 



This set of programs was written for the Western Australian Applicable Mathematics course. (Also has copy of MAV). 


Individual programs in these files: 


GAUSELIM 

Preview Gaussian elimination of matrix A, result in matrix R, showing steps. 


LINPRG 

Preview Solves linear programming problems. Enter inequalities, objective function and program does the rest. WARNING: Optimal value is always OK, but not confident this program will always return the correct coordinates  more checking still needed. 


MEDIAN 

Finds the median from a grouped frequency table using linear interpolation. See Sheet 15 for a worked example. 


PDF+ 

Preview Updated! Five probability distributions in one quick program. Calculate, tabulate and plot any normal, exponential, Binomial, Poisson or user defined (any pdf entered in Y1) probabilities. Probabilities now displayed to 5dp instead of 4! 


RESIDUAL 

Check your regression model with this small utility which calculates and plots residuals based on regression of List 2 (y) on List 1 (x). 


ROWREDA 

Preview Reduces matrix A to echelon form, storing result in matrix R and indicating type of solution. 


ROWREDTT 

As for ROWREDA but also shows steps in reduction. (Though rarely shows a neat path to the reduction!) 



Group 4 
Size 
Author 
Last Updated 


Odds'n'Ends 
27kb 
Charlie Watson 
15/03/2004 



This is a set of miscellaneous programs and utilities. 


Individual programs in these files: 


2PT LINE 

New! Enter coordinates of two points and get gradient, midpoint, distance and equation of line. 


BORGS 

Works out aerobic exercise heart rate targets for given age, exercise intensity and level of fitness. 


GRAPHEQN 

Practice in working out a and b for y=ax+b from a graph. 


INEQSOLV 

Solves single variable (linear) inequalities of the form ax+b < cx+d. 


LATLONG 

Solves latitude and longditude problems  both distance from A to B or position after travelling xkm from A. 


MARKS 

Enter max mark, then enter student mark(s) for conversion to % and finish with hi mark (>max) to obtain class average. 


MEANMED 

Little utility to calculate mean and median for single data set without going into STAT mode. 


PERPBSCT 

Calculates and draws the perpendicular bisector of any two points. 


QUADEQN 

Calculates equation of a parabola from three points. 


QUADSOLV 

Preview Updated! Enter quadratic in any form and have it converted into standard, completed square and factored (where possible) forms. Roots (real or complex) given as both exact and decimal values. 


RIGHTTRI 

Righttriangle solver when angle and one of O, A or H is known. 


SAVOL 

Solves surface area and volume problems for most prisms, pyramids, cones, spheres and cylinders. 


SIMPLOTS 

Takes simultaneous equations (2 variables) with coefficients already entered in SOLV SIML [2] and graphs them to assist in interpretation of solution. 


SURDSIMP 

Preview Simplifies several common types of surd expressions. 


TRAPRULE 

Introduction to finding area beneath a curve using trapeziums. Store function in Y1 first. Uses Lists 1 to 3 for working. 


TRISOLVE 

Preview Enter known sides or angles and TriSolve finds the rest and area. (Including ambiguous case of sin rule). 



Group 5 
Size 
Author 
Last Updated 


Number 
5kb 
Charlie Watson 
15/03/2004 



A set of fast running number utilities to speed up those irksome number questions. 


Individual programs in these files: 


DTF 

Enter any decimal number to find exact (or nearest) equivalent fraction to tenth decimal place. 


FACTORS 

Finds all factors of a number. 


HCF 

Finds Highest Common Factor for two numbers. 


LCM 

Finds Lowest Common Multiple for two numbers. 


NUMSEQS 

Generates list of up to 50 terms of Fibonacci sequence or first 250 prime, square or triangle numbers. 


PRIME? 

Determines whether a number is prime or composite. 


PRIMFACT 

Finds all prime factors of a number. 



Group 6 
Size 
Author 
Last Updated 


Simulations 
18kb 
Charlie Watson 
15/03/2004 



A set of programs to simulate a variety of situations and hence obtain sets of experimental results. 


Individual programs in these files: 


BROWNIAN 

Simulates Brownian motion. 


COINTOSS 

Simulation which counts number of H and T when a coin is tossed. 


CONHEADS 

Simulates tossing coin and records runs of consecutive heads. Results displayed in table and graph. 


DECAY 

Simulates radioactive decay of anywhere between 1 to 1000 atoms. Decay continues until all radioactivity has ceased. Results summarised in table and graph. 


DICEROLL 

Simulates rolling a die until a chosen number appears. 


DOUBLE6 

Counts number of double 6's in up to 250 tosses of a pair of dice, recording each toss in Lists 1 and 2. 


DRAWCARD 

Visually simulates drawing cards from a shuffled pack with or without replacement. 


GUESS 

Collects up to 50 student estimates of 5 seconds and puts them into a list for analysis. The worksheet Task 2  Estimation of 5 seconds  Data collection and Normal distribution illustrates a possible use. 


HEADS 

Cumulative probability of tossing a head 99 times. Relative frequency is graphed. 


LONGRUN 

Simulates long run experimental relative frequency for an event with probability P. 


ONE DICE 

Simulates tossing a single die up to 96 times. Live update of count. 


REACT 

Collects up to 50 measurements of your reaction times and puts them into a list for statistical analysis. See example worksheet Task 1  collection and analysis of reaction times. 


TOSSES 

Choose how many coins to toss and how many trials. This simulation then displays the number of heads obtained in a table and graph. 


TWO DICE 

Simulation of tossing a pair of dice up to 250 times. Column graph grows as the experiment progresses. Results summarised in table. 



Group 7 
Size 
Author 
Last Updated 


EA100 data 
44kb 
Charlie Watson 
15/03/2004 



This set of programs is for use with the EA100 Data Analyzer. For detailed instructions on using this collection, read the Data Logging page. 


Individual programs in these files: 


GETDATA 

This simple to use program is for data collection using the three probes supplied with the EA100 data analyzer. If you are new to data logging, then this is the program to start with. 


GETDATA2 

The big brother to GET DATA, allowing the use of any type of probe, any combination of up to 4 probes, individual calibration or conversion equations for all probes and use of one probe to trigger data collection. Real time graph plotting is possible either against time or one probe against another. 


GETITEM 

Single or paired data collection with a single probe. Each sample is individually triggered from the calculator. 


GETPH 

This program is specifically for use with the Vernier pH system, allowing real time monitoring and graphing of the pH of solutions over the 0 to 14 range. 


GETPULSE 

Specifically for use with the Vernier heart rate monitor. Allows continuous monitoring and recording of an individuals heart rate using an ear clip. 



Group 8 
Size 
Author 
Last Updated 


EA200 data 
12kb 
Charlie Watson 
15/03/2004 



This set of programs is for use with the new EA200 Data Analyzer. For detailed instructions on using this collection, read the Data Logging page. 


Individual programs in these files: 


EA2PH 

New! This program is specifically for use with the Vernier pH system, allowing real time monitoring and graphing of the pH of solutions over the 0 to 14 range. 


EA2PULSE 

New! Specifically for use with the Vernier heart rate monitor. Allows continuous monitoring and recording of an individuals heart rate using an ear clip. 


EASY200 

New! This simple to use program is for data collection using the three probes supplied with the EA200 data analyzer. If you are new to data logging, then this is the program to start with. 



Group 9 
Size 
Author 
Last Updated 


Kissane 
6kb 
Barry Kissane 
2/07/2000 



The source of most of these programs is Chapter 12 (Programming) in the book More Mathematics With A Graphics Calculator by Barry Kissane. (See Books). They are fairly short and intended to help you understand the basics of programming. See book for full details of programs. 


Individual programs in these files: 


ARCHIMED 

Calculate an approximation for pi based on Archimedes. 


BINPROB 

Makes Binomial probability distribution table. 


CALENDAR 

Returns the day of week from the date. 


CARDS 

Simulates collecting complete set of n cards. (Eg collector cards in cereal). 


COIN 

60 simulations of tossing coin n times. Number of heads in List1. 


DEPLOT 

Finds differential equation solution graphically using step method. 


DIFFLIST 

Stores differences of values in List1 into List2. 


DIRECFLD 

Draws direction field for differential equation. Formula in Y1. 


DISPLAY 

Time v temperature data recording with EA100 unit. 


FACTORS 

Finds set of prime factors of n for n>10. 


MANDLBRT 

Draws user chosen part of Mandelbrot set. 


SAMPDIST 

Selects random sample from data stored in List1. 


SAMPLE 

Creates random samples of data with chosen probability. 



Group 10 
Size 
Author 
Last Updated 


Ziv 
9kb 
Alan Ziv 
2/07/2000 



These programs are also posted in *.zip format on the USA site The Casio Classroom, hosted by University of Central Florida. 


Individual programs in these files: 


AMORTIZE 

Computes the standard amortization calculations. 


CMPLXPWR 

Finds any power of a complex number. 


CMPLXRT 

Finds and displays the n complex solutions of z^{n} = c. 


DBLINT 

Approximates a double integral numerically. 


EULER 

Plots the Euler's method solution of a differential equation. 


FUNDTHM 

Numerically solves the differential equation and plots the antiderivative. 


IMPGRAPH 

Plots the implicitly defined graph given by F(x, y) = 0. 


LINPROG 

Solves a linear programming problem by the simplex method. 


PRIME 

Determines whether a number is prime or composite. 


PRIMFACT 

Reports the prime factors of a number and their multiplicity. 


RIEMANN 

Approximates an integral by a Riemann sum. 


ROWREDA 

Row reduces Matrix A to reduced row echelon form. 


SLOPEFLD 

Graphs the slope field of a differential equation. 


TRIPLINT 

Approximates a triple integral numerically. 




There are 2 ways to download all the above sets of programs for all calculator models:
DOWNLOAD ALL PROGRAMS  (cat.zip), an 84k zip file  you'll need to unzip using Winzip software or similar into original *.cat format.
DOWNLOAD ALL PROGRAMS  (cat.exe), a 110k selfextracting archive if you don't have an unzipping utility. Save into your FA122 folder and then double click the file to automatically create a folder called 'cworks' containing all original sets in *.cat format.
 



