----------------------------------- Arrow Wed Feb 12, 2003 4:55 pm Decimals? ----------------------------------- Noob question here... how do i make "randint(x,y,z)" generate a number with a certain number of decimals? not just a whole number... btw x, y, and z are declared: "var x:int" ----------------------------------- azndragon Wed Feb 12, 2003 5:33 pm ----------------------------------- Setting your variables as real type would help :D ----------------------------------- Tony Wed Feb 12, 2003 5:53 pm ----------------------------------- rand(x:real) will assign a random floating point (decimal) number between 0 and 1 to variable x to get a value you want from it, you add the lower range and multiply by highrange - lowrange. here's what I mean... say you want a 50 to 100 range. so you do: rand(x) x:=x*(highrange-lowrange)+lowrange where highrange would be 100 and lowrange would be 50 this code will assign a real value to x from 50 to 100. ----------------------------------- Arrow Wed Feb 12, 2003 10:56 pm ----------------------------------- Hmm, thanks for the replys, still dont really understand though... Heres my code: var x:int var y:int var a:int put "Enter the Minimum Value" get x put "Enter the Highest Value" get y randint(a,x,y) put "A random number between these two is ", a How would I go about changing x into a "real" number? var x:real doesnt work ----------------------------------- Tony Thu Feb 13, 2003 9:49 am ----------------------------------- thats because randint fuction generates a random integer (whole) value, not real. you have to use rand() to generate a random real number between 0 and 1. var low:real var high:real var x:real rand(x) x:=x*(high-low)+low put "a random number between ", low," and ",high," is ", x ----------------------------------- Dan Thu Feb 13, 2003 4:07 pm a bit more ----------------------------------- i just whonted to add on to this for poleop who did not know. an int or intager is a number with no decliampe places (whole number). ie. 56 an real number is a number with declmale places. ie. 56.56789 to decaler an var as an int (a var that will only take whole numbers): var nameofvar:int to decaler an var as real (a var that has decalmal numbers): var nameofvar:real you are going to decaler your veriables as real if you whont to us the rand() comand to get random numbers with random decmail dlaces. ----------------------------------- Tony Thu Feb 13, 2003 5:18 pm ----------------------------------- hah, thats what I love about C++, you can promote your variables in the program and your integer will turn into real if you do an operation with it containing a real number. No more type mismatches :D *caugh*This is getting off topic :? ----------------------------------- Dan Fri Feb 14, 2003 7:28 am ----------------------------------- ya that is nice. the ony porblem is when going from float to int it will not rownd just cut off the decmals, but it is still better then turings sytem. :) ----------------------------------- Tony Fri Feb 14, 2003 9:18 am ----------------------------------- oh, I'm fine with that... if you want to have it round floating point instead of dropping the decimal, you just add 0.5 before converting. It will be rounded perfectly :D ----------------------------------- *GoGeTa* Mon Oct 18, 2004 5:21 pm Hey do you need help ----------------------------------- tell me exactly what you need help on adn send me your program .... i'll try to help ----------------------------------- wtd Mon Oct 18, 2004 6:13 pm ----------------------------------- hah, thats what I love about C++, you can promote your variables in the program and your integer will turn into real if you do an operation with it containing a real number. No more type mismatches :D *caugh*This is getting off topic :? That behavior in C, C++ and various other languages causes a lot of problems, actually. ----------------------------------- Cervantes Tue Oct 19, 2004 9:17 am ----------------------------------- is that the 'goto' of C/C++? I wonder what kind of problems you are talking about, though: problems with coding it or problems with that method generally being frowned upon (like goto) ----------------------------------- wtd Tue Oct 19, 2004 1:20 pm ----------------------------------- Well, it's generally preferable for your compiler to point out the fact that you're using an integer where you intended a floating point number to be used. It allows you to find that semantic (rather than syntactic) error right away, rather than waiting until it becomes a problem. ----------------------------------- Dan Wed Oct 20, 2004 10:24 pm Re: Hey do you need help ----------------------------------- tell me exactly what you need help on adn send me your program .... i'll try to help ummm guys this post was made like a year ago