im using a ti 84 plus calculator on ti basic
the code for converting a int into a string is
{0,1→L₁
:NAns→L₂
:LinReg(ax+b) Y₁
:Equ►String(Y₁,Str1
:sub(Str1,1,length(Str1)-3→Str1
the problom is that if n is a fraction then it will convert the fraction to a decimal at after Equ►String(Y₁,Str1) but i want it to remain a fraction
is there any way to turn a fraction into a string?

It looks like you're making use of the old 83-series number-to-string routine. If you're not on a CE, then this routine is all you have; you'll need to convert the numerator and denominator separately and combine them.

If you are on a CE, though, then toString( gets the job done for fractions and a whole lot else.

oh sorry im using a ti-84 plus calculator in ti basic


how do i separate the numerator and the denominator
im storing the built in fraction to not turn into a decimal (so the alpha y= or f1 on the calc) into my variable


ive considered doing that but the problem is that in general decimals arnt accepted because there not precise and usually a decimal will be to big and take up to much space pushing everything else off screen

Edit by Admin: Combined posts

Could you use a string input instead of a number input? You're creating the value through the Alpha+F1 menu, so I'm assuming you could instead do something like:

Code:

Then Str2 and Str3 hold the numerator and denominator. Or you can use expr( to get real values:

Code:

Then N and D have your numerator and denominator. You can also do expr(Str1 to get the real value if you need to then do math on it and >Frac it from there. If you need to then take the results of that math and get a string, you would then be in the same position, though.

i might have to just do that if there's no other way but would this work if the denominator the numerator are bigger than 9 ie if you have a fraction that is 1506/45043 than would that still work

here some added context if it helps im using this for a quadratic equation caulculator first it ask you for the value of a then b then c and then it does the quadratic euqaiton to return the values for x but its not accepted if you just give decimal approximation plus it would be nice if could work with fractions sense there easier for some of the other math stuff i need to do

I am making my own updated version of the Number to String code, I should have it posted here soon.
the input is changed from a variable to a list (I'll list instructions with the code.) It takes the decimal value and finds the two values of the fraction. I have not tested it with many fractions so I cannot guarantee too much reliability, but I do know it works. I just need to copy it onto the sourcecoder so I have it readily available.