17 replies to this topic

[shadows_cl]

My code is

"insert a charge"
?->Q
If Q = "0" Then "0 is not a valid number"

what?s i have bad in mi sample code?

[Andy.Davies]

you have used the If <-> Then <-> Else <-IfEnd slightly wrong, thats all

here is the working version:

"insert a charge"
?->Q
If Q = "0"
Then "0 is not a valid number"

see? nothing majorly wrong, just a little syntax error

PS: if you need electronics programs, check http://www.casiofortissimo.co.nr

[shadows_cl]

hey andy. TU hablas espa?ol?.. sabes.. el programa no me funciona.. e hice todo lo que tu me indicaste, sigue mostrando el error de sintaxis.

[Orwell]

You just have to write If Q = 0 , not If Q = "0".

[Andy.Davies]

sorry, i can only count to 10 in spanish, say hello etc. if you need someone who speas spanish, ask Betoe, he will come online in about 6 hours

[shadows_cl]

Sorry andy!!! .... I probe all codes in this post and no one is result, the code is:

"Ingrese la primera carga"
?->Q
If Q = 0
Then "Error"

i use this code and this not work...... look I respect the spaces on the code of top but this code .... i am very newie and i dont anything...

[shadows_cl]

I rapair the code , but i have new one!!!!!

but can i goto the Q declaration variable if Q is 0??????

If Q=0
Then "Error"
Goto ????

???? = function to resolve my problem... i use the Gp casio com... i downloaded 2 minutes ago...

[shadows_cl]

Sorry.. this post... close moderator please.... better i read the manual of the casio... an i resolve all my dudes... for now... maybe tomorrow i post another,... jejeje

[Deimos]

I rapair the code , but i have new one!!!!!

but can i goto the Q declaration variable if Q is 0??????

If Q=0
Then "Error"
Goto ????

Hmm.. shouldn't it look like this:

If Q=0
Then "Error"
IfEnd

And if You use Goto, You'll have to place a label, like:

lbl Q
or
lbl 1
somewhere in the program. For labels You can use only one digit or character (A to Z, r, theta)
Note that lbl Q has nothing to do with variable Q - label marks a spot in program where You want to jump. So for example, if You assigned 1 to variable Q, Goto Q command won't take You to lbl 1, but to lbl Q. If lbl Q doesn't exist, You'll get a "jump error" message. It's like with lists or pictures - You can't recall a picture or list using variables, only numbers.

One more advice - if You write a program where You use many conditions (If) or lops (while, for), always close them, eg. when You open a loop using While, immidietely close it using WhileEnd. Do the same with for using next and with If using Ifend. Else You'll get a syntax error at the end of the program and it might be very hard to find a loop You left open...

[shadows_cl]

Lbl 1
"INGRESE LA 1 CARGA"
?->Q
If Q=0
Then Goto 2
Lbl 2 "LA CARGA NO PUEDE SER CERO"
Goto 1
Else Goto 3
Lbl 3 "INGRESE LA 2 CARGA"
?->R
If R=0
Then Goto 4
Lbl 4 "LA CARGA NO PUEDE SER CERO"
Goto 3
Else Goto 5
Lbl 5 "INGRESE LA DISTANCIA"
?->D
If D=0
Then Goto 6
Lbl 6 "LA DISTANCIA NO PUEDE SER CERO"
Goto 5
Else Goto 7
Lbl 7 ((QXR)/D^2)->T
T_
END

WHERE
/ = divition
_ = show triangle

this work in the casiocom, but in my calc show an error .. say go ERROR

[Orwell]

AAAAAAAAAAAH
Please please please don't use goto like that

Do
"INGRESE LA 1 CARGA"
?->Q
Q=0=>"LA CARGA NO PUEDE SER CERO"
LpWhile Q=0

Do
"INGRESE LA 2 CARGA"
?->R
R=0=>"LA CARGA NO PUEDE SER CERO"
LpWhile R=0

Do
"INGRESE LA DISTANCIA "
?->D
D=0=>"LA DISTANCIA NO PUEDE SER CERO"
LpWhile D=0

((QXR)/D^2)->T
T_

Please forget Gotos for now, there are other instructions quite more efficient for this...

[huhn_m]

to explain orwells nice reaction:

you can not jump arround in If statments since somewhen there
will be a if end missing.

Also you don't need a goto if you just want to go on in the next line

[2072]

Yes and goto == (unreadable programs, bugged programs, bad programs)

[Daruosh]

Yes and goto == (unreadable programs, bugged programs, bad programs)

<{POST_SNAPBACK}>

Exactly, but sometimes inevetible

[CrimsonCasio]

its also very usefull for jumping to the top of a program, as it starts looking for the Lbl at the top.

[Andy.Davies]

if you use Goto and lbl carefuly thay can be very useful, but there is usually a better way to do somthing. before i knew how to use BASIC properly i did things like this:

0->A
Lbl 0
Isz A
//code
A=10=>Goto 1
A<10=>Goto 0
Lbl 1

hehe, then i learnt about For loops

[Bija]

yeah this is more simple :

for 1-> A To 10
Next

[2072]

It's funny to do Basic programs without a single goto