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Adding Variables


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#1 sharf

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Posted 28 February 2008 - 07:22 PM

Ok, I want to add variables but not like

number1 + number2

number1=2, umber2=4

that would result with me getting 6
I want it to add them and be 24 like a calculator so it will add them like this
number1,number2
so it will be
2,4
24

Thanks, sharf
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#2 Renegade605

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Posted 28 February 2008 - 07:30 PM

EDIT: My bad...

Edited by Renegade605, 28 February 2008 - 11:23 PM.

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#3 sharf

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Posted 28 February 2008 - 07:31 PM

Thanks for not reading my post I want it to add them so num1+num2 would be 59 not 14

Like a calculator adds them out as you type/push buttons.
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#4 Rick_Slick

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Posted 28 February 2008 - 07:36 PM

Please read the manual next time before you ask a question.

<{POST_SNAPBACK}>


Please read his question next time before you attempt to answer. ;-)

To the original poster... your 2 is the ten's digit, so multiply it by 10 and then add it to your 4 to get 24.

num1 = 2
num2 = 4

So you would want: (num1 * 10) + num2

If you had:
num1 = 2
num2 = 4
num3 = 1

and wanted to get 241 out of it, then you would do: (num1 * 100) + (num2 * 10) + num3
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#5 zorblood

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Posted 28 February 2008 - 07:37 PM

a calculator does not do that... thats not even math. You could try using their strings and combine them.
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#6 sharf

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Posted 28 February 2008 - 07:44 PM

Thanks, I'm making a calculator, and I had a calctxt as the variable. I want it so when you hit the number it adds it before the previous number....like a real calculator.

Any help?
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#7 Rick_Slick

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Posted 28 February 2008 - 07:59 PM

num1 = the current number on the calculator display

num2 = the number to add

multiply num1 by 10, then add num2

for instance:

Your calculator displays: 514

You want to press a 5 so the calculator will display: 5145

num1 = 514

num2 = 5

(num1 * 10) + num2 = 5145
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#8 sharf

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Posted 28 February 2008 - 08:04 PM

yes but that can get really tedious when adding large amounts....
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#9 Falcondude

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Posted 28 February 2008 - 08:08 PM

Mess around with strings. string(num1) and string_insert(blah blah blah num2) should work.
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#10 Rick_Slick

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Posted 28 February 2008 - 08:09 PM

All you're doing is multiplying the current display number by 10 and then adding the number that the user presses on the calculator. Two steps every time someone presses a number key. How is that tedious?

You can change the current display number to a string and change the number that the user presses to a string, and just concatenate them together, I guess. But that's no more or less tedious. Plus you'd have to re-convert them back into values to perform any mathematical operations on them.
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#11 Dangerous_Dave

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Posted 28 February 2008 - 08:12 PM

num1="5";
num2="8";

Then when you add them:
num1+num2= "58";
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#12 Falcondude

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Posted 28 February 2008 - 08:12 PM

Plus you'd have to re-convert them back into values to perform any mathematical operations on them.

real(num3);

Seems pretty simple to me.
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#13 Twigster_TF

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Posted 28 February 2008 - 08:16 PM

ok, the easiest way to do it is to have calctext as a string

ie:

calctext = "567"

when the button is pressed (ie 5):

calctext = calctext + "5"

calctext now equals "5675"

to use it as a number, ie for adding, use: real(calctext)
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#14 sharf

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Posted 28 February 2008 - 08:19 PM

thanks Twigster_TF thats the kind of thing Im looking for... the only thing, is it possible to make a string, and then just have a variable equal that string?
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#15 Rick_Slick

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Posted 28 February 2008 - 08:19 PM

If real(string(num1) + string(num2)) is simpler than (num1 * 10) + num2, then so be it.

Also, if you press CLEAR on your calculator and want to clear the most recently added number, then newnumber = floor(oldnumber/10).
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