Automatic Fractions

[NovaProgramming]

Alright, so that works, thanks!

However, I still can't figure out how to make it appear to the left of the screen. The ultimate goal is to have a degree to radian converter that changes the degree into a radian (DEGREE * pi/180) and then also gives it in a fractional value...

DEGREE * (pi/180) _> D
D/pi = some decimal (we'll call it x)

when you use the >FRAC function it changes it into a fraction; aka just like what Pr0gger told me. In order to get the fractional value akin to the opening Radian value, you must multiply the fraction by PI...

for Example:

45 * (pi/180) = .785398163397 (approximately)
ANSWER / pi = .25
.25 >FRAC = 1/4

to obtain the original answer you have to take 1/4 (.25) and multiply it by PI.

All this leads up to the displaying of the answer on the calcultor; I can't seem to place PI anywhere near the fraction. A simple "LEN$(variable)" would work wonderfully, but I don't know an equivallent function for TI-BASIC or whatever it is. So, here's your new problem...

-Nova

[pr0gger]

length( can be found in the catalog and works the same way as LEN(, excpet it can't be used with numbers.

[NovaProgramming]

Okay, then if it can be done, is there a way to designate those variables,

A

B

that are the top of the fraction and the bottom of the fraction as string variables to use with that function? Sorry that I'm such a newb, there's just so many damn commands that I don't know what does what.

[pr0gger]

Ah, I see. Well there's a better way and you don't even have to use that:

this formula:

Code:

int(log(X)/log(10))+1

Will return the number of digits in X. As for converting them into strings...hmm...

[NovaProgramming]

Okay, this is EXACTLY what I want the program to do...

Input the Degree value
Convert it to Radians
Give a Decimal Answer for the Radian
Give a fractional value of the Radian by dividing the decimal by PI, and changing it into a fraction, later putting PI next to it.

The only problem is that I have to get PI to be next to the fraction

for instance, 1/4 must look like 1/4(PI) where (PI) is the actual PI symbol. Which could be done, I just don't know how. Is there a way to use this LENGTH command with integers? Or, if not, is there a way to convert the integers into strings AND THEN use the command? Argh I am so confuzed. It pisses me off because I could do this in QBasic SO EASILY...

[pr0gger]

Hmm, there is no way to convert a number to a string, but is a way to output to any place on the screen.

Output(R, C, Blah) and Output(R, C, "Blah") where R is the screen row, C is the column, and Blah is any number or string.

ClrHome works like qbasic's CLS.

So...

The following program will take A and B and print "A/Bpi" in the top left corner, where "pi" is the PI symbol.

Code:

ClrHome
int(log(A)/log(10))+1_>C
int(log(B)/log(10))+1_>D
Output(1,1,A)
Output(1,C+1,"/")
Output(1,C+D+1,B)
Output(1,C+D+2,"pi")

Where "pi" is the PI symbol.

[NovaProgramming]

pr0gger, bless you and your beautiful logarithims, cause that's what they are, right? I'm only in Trigonometry for 3 weeks and I've only ever heard breifly about LOG and all that jazz. Anyway, that probably made no sense, but thanks!



But we have a problem, I realize, after testing it. For some numbers it can't find a GCD with 10^11...

The forumula is (DEGREE * (pi/180))/pi <--- and when fractionized, converts a degree measurement into a radian measurement in a fractional from in terms of PI. So if you used 60 as the degree, it would end up being .33333333... which we all know as 1/3 . but the program doesn't say that. I don't really know why... Is there an alternative way of finding the denominator besides finding the Greatest Common Denominator? Argh, sorry about all this...

[Zack]

Just so you know, gcd stands for greatest common divisor, not denominator.
Don't mean to nitpick, though.

[pr0gger]

Zack: denominator, divisor, whatever :p

(first, yes those are logs, I just grabbed that equation out of a book over here)

Well, the main reason I used 10^11 was to make any fractions into whole numbers-- you'll note that gcd( can't use decimals.

As for alternative ways... I'm not sure. THere's probably an equation out there...

[NovaProgramming]

Alright, thanks for your guys' help. It's Monday morning, so that means back to school. My friend Eric and I both were trying to figure this out, as well as the Trig teacher, so maybe one of them got it... either that or maybe I'll be the closest! :bounce:

Thanks again, though, seriously, QBNZ roxor.