# Casio fx-7400G Manual

9. program library

## Program Library

1 Prime Factor Analysis
2 Greatest Common Measure
t
3
-Test Value
4 Circle and Tangents
5 Rotating a Figure
Before using the Program Library
• Be sure to check how many bytes of unused memory is remain-
ing before attempting to perform any programming.
• This Program Library is divided into two sections: a numeric cal-
culation section and a graphics section. Programs in the numeric
calculation section produce results only, while graphics programs
use the entire display area for graphing. Also note that calcula-
tions within graphics programs do not use the multiplication sign
( ) wherever it can be dropped (i.e. in front of open parenthesis).
Chapter
9

• ### Page 1: Program Library

Chapter Program Library 1 Prime Factor Analysis 2 Greatest Common Measure -Test Value 4 Circle and Tangents 5 Rotating a Figure Before using the Program Library • Be sure to check how many bytes of unused memory is remain- ing before attempting to perform any programming. •...
• ### Page 2: Program Sheet

PROGRAM SHEET Program for Prime Factor Analysis Description Produces prime factors of arbitrary positive integers For 1 < < 10 Prime numbers are produced from the lowest value first. “END” is displayed at the end of the program. (Overview) is divided by 2 and by all successive odd numbers ( = 3, 5, 7, 9, 11, 13, ..) to check for divisibility.
• Page 3 Line Program File name " " Goto Goto Frac Goto Goto Frac Goto Goto Goto – Goto Goto " " Goto...
• ### Page 4: Greatest Common Measure

PROGRAM SHEET Program for Greatest Common Measure Description Euclidean general division is used to determine the greatest common measure for two interers a and b For | |, | | < 10 , positive values are taken as < 10 (Overview) = max |, |...
• Page 5 Line Program File name " " " " < Goto (–) – Goto Goto Goto a, n b, n...
• ### Page 6: T -Test Value

PROGRAM SHEET Program for -Test Value Description The mean (sample mean) and sample standard deviation can be used to obtain a -test value. (x – m) : mean of data : sample standard deviation of data n– –1 : number of data items : hypothetical population standard deviation (normally repre- sented by , but is used here because of variable name...
• Page 7 Line Program File name List l-Var List " " – n– " " Goto • -distribution table The values in the top row of the table show the probability (two-sided probability) that the absolute value of is greater than the table values for a given degree of freedom.
• ### Page 8: Circle And Tangents

PROGRAM SHEET Program for Circle and Tangents Description Formula for circle: Formula for tangent line passing (x',y') through point A ( – – represents the slope of the tangent line With this program, slope and intercept – ) are obtained for lines drawn from point ) and are tangent to a circle with a radius of .
• Page 9 Line Program File name Prog " " " " Prog " " " " " " Plot – – – –1 – Graph Y= " " " " – " " Goto Goto Goto (–) – – –1 – Graph Y= "...
• Page 10 Line Program Prog " " Goto – Graph Y= – Graph Y= Goto – Graph Y= Prog " " Prog " " Goto " " File name View (–) (–) Window File name – Graph Y= (–) – Graph Y=...
• Page 11 Program for Circle and Tangents Step Key Operation Display...
• Page 12 Program for Circle and Tangents Step Key Operation Display...
• Page 13 Program for Circle and Tangents Step Key Operation Display...
• Page 14 Program for Circle and Tangents Step Key Operation Display...
• ### Page 15: Rotating A Figure

PROGRAM SHEET Program for Rotating a Figure Description Formula for coordinate transforma- tion: – Graphing of rotation of any geometric figure by degrees. Example To rotate by 30 the triangle defined by points A (2, 0.5), B (6, 0.5), and C (5, 1.5) Notes •...
• Page 16 Line Program File name View (–) (–) Window " " " " Plot " " " " Plot " " " " Plot Line Plot Line Plot Line " " – Plot – Plot Line – Plot Line Plot Line Plot Plot : Goto 1...
• Page 17 Program for Rotating a Figure Step Key Operation Display...
• Page 18 Program for Rotating a Figure Step Key Operation Display (Locate the pointer at X = 5) Continue, repeating from step 8.