39 replies to this topic

[Orwell]

The calc already has the function you need, you just have to go in RUN-MAT, open the SETUP menu, and set the "Mode" to "Bin"

[huhn_m]

short explanation of ORWELLS statements for newbies:

*Go to RUN Menu
*go into SETUP menu (SHIFT -> SETUP (on CFX)/ CTRL Setup(on AFX)
*Set Mode to convert from
*Type [Number to convert to binary]->A 'without the brackets!!!
*go into SETUP menu (SHIFT -> SETUP (on CFX)/ CTRL Setup(on AFX)
*Set mode to convert to
*enter A and press EXE.

For all the lazy people arround here:

Binary program!!! (press binary on creating)

"SELECT ORIGIN"
"[F1]=BIN"
"[F2]=HEX"
"[F3]=DEC"
"[F4]=OCT"
DO:Getkey->A
REPEAT UNTIL A=79 or A=69 or A=59 or B=49
A=79=>Bin:A=69=>Hex
A=59=>Dec:A=49=>OCT
"Enter Number"?-B
"SELECT TARGET"
"[F1]=BIN"
"[F2]=HEX"
"[F3]=DEC"
"[F4]=OCT"
A=79=>Bin:A=69=>Hex
A=59=>Dec:A=49=>OCT
B_

_ ist the triangle.

[Orwell]

DO:Getkey->A
REPEAT UNTIL A=79 or A=69 or A=59 or B=49

=>

Do:Getkey->A
LpWhile A<>79 And A<>69 And A<>59 And A<>49

[huhn_m]

sorry ORWELL ...

[Andy.Davies]

when you gointo [PRGM] and press F3' />, type the name for the program and press F2' /> (BASE) then EXE' /> to create your prog. this gives you access to the numbering system commands. but you cant use and kind of programming like FOR, IF, DO in a Base prog.

[R00KIE]

But you can make that program a sub-routine of a main program that uses all the other commands

[Andy.Davies]

no you cant we tried that (it dosent work on FX9750G or and AFX2.0)

[BHetrick]

A slight variantion on huhn_m's program works (all the constants need to be explicitly in decimal radix), but cannot be entered through the calculator keyboard. Using a combination of the calculator and the FA-122 program, though, works. The .CAT file has the contents:

%Header Record
Format:TXT
Communication SW:0
Data Type:PG
Capacity:299
File Name:BASECONV
Group Name:
Password:
Option1:NL
Option2:
Option3:
Option4:
%Data Record
"Select Origin"
"[F1]=\Binary"
"[F2]=\Hexadecimal"
"[F3]=\Decimal"
"[F4]=\Octal"
\Do
\Getkey\->A
\LpWhile A\<>\Dec>79\ And A\<>\Dec>69\ And A\<>\Dec>59\ And A\<>\Dec>49
A=\Dec>79\=>\Bin
A=\Dec>69\=>\Hex
A=\Dec>59\=>\Dec
A=\Dec>49\=>\Oct
"Enter Number"?\->B
"Select Target"
"[F1]=\Binary"
"[F2]=\Hexadecimal"
"[F3]=\Decimal"
"[F4]=\Octal"
\Do
\Getkey\->A
\LpWhile A\<>\Dec>79\ And A\<>\Dec>69\ And A\<>\Dec>59\ And A\<>\Dec>49
A=\Dec>79\=>\Bin
A=\Dec>69\=>\Hex
A=\Dec>59\=>\Dec
A=\Dec>49\=>\Oct
B\Disp
%End

[R00KIE]

@Andy.Davies
It does work for me. I've done that using a CFX 9850.
Or maybe i haven't been too explicit on how to do it, check the "Truth Tables" program at file sharing
Or i didn't get the point at all

[BHetrick]

Here is another radix conversion program that is FX-7400G compatible, and which handles all bases from 2 to 10 inclusive.

Do
"Entry radix"?->A
LpWhile ((A<>Int A)+(A<2)+(A>10))<>0
Do
"Value"?->B
LpWhile ((B<>Int B)+(B<0))<>0
0->C
1->D
While B<>0
B/10->B
10DFrac B+C->C
Int B->B
AD->D
WhileEnd
Do
"New radix"?->A
LpWhile ((A<>Int A)+(A<2)+(A>10))<>0
0->B
1->D
While C<>0
C/A->C
DAFrac C+B->B
Int C->C
10D->D
WhileEnd
B

[huhn_m]

OCT is NO variable.

All these statements are only found if you create your program in binary mode (there must be a small B next to the files name) and I think you have to pres Shift' />+[SETUP] then

[Andy.Davies]

erm...why did you quote yourself?

but in base programs you cant do anything like that, and you cant call a base program from a normal one.

[Andy.Davies]

Ah i think you may be a little confuse. the program BHetrick posted, is not a Base program, so you can use all of the operators such as Do in it.

so just create a normal porgram on your calc, and enter his code.

[Moridin]

Yeah, i allready tried that one. Its syntax is incorret.

so How would the entire program by huhn_m look w/ subroutines ?

[Andy.Davies]

essentialy you cant. you need a different program for each conversion, only containing:

"Enter Decimal:"?->A
"Binary:"
A>Bin_

and then change the >Bin (which is one operator, not the greater than sign then Bin) to which ever you need to convert to.

[Moridin]

"Enter Decimal:"?->A
"Binary:"
A>Bin_

A>Bin_

Is ">" greater than, => ,-> or something else?

neither ">", "=>", -> works

(and i know that "_" is the triangle )

[Andy.Davies]

there is a symbol: (on AFX, should be the same on an FX):

in a BASE program:

F5' /> and there is a list of operators: >Oct , >Bin, >Hex >Dec, these are what you need to use.

[Moridin]

there is a symbol: (on AFX, should be the same on an FX):

in a BASE program:

F5' /> and there is a list of operators: >Oct , >Bin, >Hex >Dec, these are what you need to use.

Sadly there is no option for F5' /> in base on an FX

There are Bin,Oct,Hex,Dec w/o the ">" on Shift' /> -> MENU' /> but that doesnt work

[Andy.Davies]

have you checked all of the other menus in the BASE program type?

[Moridin]

yes , i have.

Maybe the program can do it the old fashioned way using remainder?

[R00KIE]

You can do all the programming in a "normal" program and the convertion in a "base" program
store the convertion in a variable (C for example) and do this in the base program
This example is for a Dec<->Bin convertion only but more can be added of course

C=1=>Bin
C=2=>Dec
"Number"?->N
C=1=>Dec
C=2=>Bin
N_

_ is the trianglething and => is the symbol in program menu

[Andy.Davies]

no need for the lbl ... its not used...

[huhn_m]

you'd better have a Dec_ as the first command instead of the first label so
that the program always gets decimal numbers and is not still in binary mode.

[genesis]

Is it really necessary to create a program, when base conversion is a built-in function?

1. In RUN mode, press Shift' />+MENU' /> to enter SET UP.
2. Change the mode to the base you wish to convert to.
3. Press F1 and select the base you wish to convert from.
4. Type in the number you wish to convert and press EXE' />.

With this method, you can enter an expression containing numbers from different bases by repeating step 3 before entering each number. You can also use the last answer in any base by repeating steps 1 to 2 and pressing Ans.

Just a side note, why does Dec mode include negative numbers? It would have been fine if it went from 0 to 2^32 - 1, supporting all 2^32 numbers. Instead it goes from 1 - 2^31 to 2^31 - 1, supporting only 2^32 - 1 numbers. As a result converting 2^31 to Dec mode displays - 2^31, but entering this number manually results in Ma Error!

[R00KIE]

I would be concerned if it didn't support negative numbers not the other way around, binary base allows negative numbers so it's kind of logic that decimal base supports them too.

[genesis]

Sorry, I don't quite understand. Bin goes from 0 to 2^16 - 1, attempting to enter a negative number works like modulo arithmetic (-1 is 2^16 - 1). What I mean is Dec actually displays the negative sign and goes from 1 - 2^31 to 2^31 - 1. Of course, this shouldn't be a problem but if you think about it, its range is different to the other bases. Attempting to convert from Hex or Oct to Dec brings up the pigeonhole principle, 2^32 "pigeons" and 2^32 - 1 "holes". So the calculator included - 2^31 to fix this problem, but entering it manually results in Ma Error (its like trying to get the number 256 from a byte, it only goes from 0 to 255).

A similar problem occurs in binary, if you try to use one of the bits to represent positive or negative, you end up with positive 0 and negative 0, which are the same. As a result, you have one less number than if everything was positive, rendering it INCOMPATIBLE with such bases.

[R00KIE]

The calculator uses the two's complement of a number to represent a negative number so that behavior is expected, with the two's complement you can add the two numbers and get the correct result, which would need to be corrected with the plain number complement.
There is a difference of 1 in the range of numbers that can be represented but i guess it doesn't matter, in school you don't use numbers that big so that shouldn't be a problem.

[huhn_m]

i'd like to say , but i'm a kind person:

Go into RUN mode, choose setup and set the number type to BIN

now you can enter binary numbers and convert them to other bases.

[mostafamagdysayed]

Reply me plz someone tell me how to use the STAT prog in FX 9860G SD