## Saturday, January 7, 2023

### Casio fx-9750GIII: Decimal Expansion of a Fraction

Casio fx-9750GIII:  Decimal Expansion of a Fraction

Introduction - Happy New Year!

The program DEC21 finds a decimal expansion of a positive fraction.  This program is based on Barry Kissane's DECIMAL program from "Programming Your Calculator: Casio fx-7400G Plus" (see source below).

Casio fx-9750GIII Program:  DEC21

244 bytes

"2022-11-22 EWS"

"FRACTION EXPANSION"

"NUM.(>0) "?→N

"DEN.(>0) "?→X

Int log (N/X)+1→T

ClrText

Locate 1,2,N

Locate 13,2,"÷"

Locate 1,3,X

Locate 13,3,"≈"

For 1→I To 21

If T=0

Then

Locate I,5,"."

I+1→I

IfEnd

Int (N÷X)→D

10*(N-D×X)→N

Locate I,5,D

T-1→T

Next

Locate 18,1,"   "

Note:  the approximate symbol, ≈, is found in the CHAR menu.

Examples:

Example 1:

558/127

NUM:  558

DEN:  127

Result:

558 ÷

127 ≈

4.3937007874015748031

Example 2:

5/27

NUM: 5

DEN: 27

5  ÷

27  ≈

0.1851851851851851851

Here's to a great 2023!

Source

Kissane, Barry.  Programming Your Calculator: Casio fx-7400G Plus. Chatswood NSW, Australia, 2000. ISBN 0 9758302 0 3.

Eddie

Remember, my regular posting schedule for January and February 2023 is on Saturdays only.

All original content copyright, © 2011-2023.  Edward Shore.   Unauthorized use and/or unauthorized distribution for commercial purposes without express and written permission from the author is strictly prohibited.  This blog entry may be distributed for noncommercial purposes, provided that full credit is given to the author.

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