[Sample] Basic Random Numbers

[cool dude]

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hi, i don't know if there is already a tutorial like this but i'm going to post it anyways to help teach the nubes. lol
whenever you want to use random numbers in turing you have to use the word randint and put the numbers you want turing to randomly pick out from. below is an example of what i mean. i put some comments in for you to understand exactly why i put some things. i hope you learn from this. enjoy!

code:

%Guessing Game var number, guess, left : int   %stores the answers the user gave and output. loop     randint (number, 1, 10) % you have to put this because you want the program to randomly choose a number     left := 3   % Displays the amount of guesses left     put "I have picked a number between 1 and 10. You have 3 guesses to guess it!"     put " "     for a : 1 .. 10         put "Enter your guess."         get guess         if guess > number then             put "Your guess is to high."             put "You have " ..             left := left - 1             put left ..             put " guesses left."             put " "         elsif guess < number then             put "Your guess is to low."             put "You have " ..             left := left - 1             put left ..             put " guesses left."             put " "         elsif guess = number then             put "You are correct!!!!!  Good guess!!"             exit         end if         if left = 0 then             put "Nice try! The number is ", number         end if     end for     put "Would you like to try again (y/n)?"     var again : string     get again     if again = "n" then         exit     else         cls     end if end loop

[Tony]

randint is a preaty bad way to do it You're better off with Rand.Int(low, high)

code:

for i : 1 .. 10     put "a random number between ", -i, " and ", i, " is : ", Rand.Int (-i, i) end for

[Delos]

Hmm...
Well, I guess since it was for "extreme newbies"...

First off, in the future please check your code before you post it. This code was buggy...your for loop does not work correctly.

Random Numbers, eh?

Random numbers in Turing, as in (just about, if not) all programming languages are not really random. They're just generated from a list so they seem random.

As mentioned, one has the randint() routine. This randomizes an integer. Thusly:

code:

var number : int randint (number, 1, 10)

Here 'number' is assigned a value from 1 to 10.
One could also say:

code:

var number : int number := Rand.Int (1, 10)

and the same would be true.

So we have integers, what about real numbers? We use rand():

code:

var realNumber : real rand (realNumber)

Note that one does not specify a domain for the function, the variable is automatically assigned a value from 0 - 1 (to six decimal places).
One could also use:

code:

var realNumber : real realNumber := Rand.Real

with the same effect.

There are a number of other Rand.() functions available, but these deal with situations in which strings of random numbers are required, but the same sequence needs to be generated each time. So, for 'extreme newbies', there is no need to worry.
If in doubt, press F10! Muwahahahaahaha.

ARGH! Beaten to the post by tony...meh

[cool dude]

sorry, my bad. didn't realize i wrote the code wrong.

[Tony]

that's ok - you tried