I'm too lazy to write an entire program solving this problem right now but I did it a few times before for my math hw (prgm in C++) so if you come up with a solution to your problem, and you have anything that doesn't work about it, post it up on the thread and I'd be happy to help you with something that doesn't work... I <3 C++... !!! ::wishes I was taking computer science this term::

quote:

Originally posted by AnotherWay83 Perl...heh, gotta love that language it's so fuckin high level, i've actually seen entire poems written in it, and they actually get parsed perfectly fine i will post 1 if u want.

yes! post it! i wanna see it!

btw, what's more high level, pearl or c++?

___________________

quote:

Originally posted by Kirby I'm too lazy to write an entire program solving this problem right now but I did it a few times before for my math hw (prgm in C++) so if you come up with a solution to your problem, and you have anything that doesn't work about it, post it up on the thread and I'd be happy to help you with something that doesn't work... I <3 C++... !!! ::wishes I was taking computer science this term::

i love C++ too.. unfortunately I am done with all my CS classes too..
now i am in love with assembly

___________________

get font

I see your 4 Crushs and raise you 3 As The Rush Comes. - Yan from PvD's first summerstage event in '03

quote:

Originally posted by PatMcGroin ATLEAST YOUR NOT DOING C!!!!!!! fucking a! i took c++ 2 years ago, and now i'm taking c....god so horrible! i fucking miss cin soooo much! c is all harder with functions too, grrr look at my last program i had to do: http://www.cs.fsu.edu/~cgs3408/html/project5.htm took me about 2 hours, but of course, with some help

C is simple. All I need is one book that explains what u get in the standard libraries.. then u will own that shit!

i like C. C++ is more fun, i admit.. Java is boring, nothing 'nifty', no pointers etc

___________________

get font

I see your 4 Crushs and raise you 3 As The Rush Comes. - Yan from PvD's first summerstage event in '03

#include
#include
#include
#include
using namespace ::std;
int main()
{
double x,n,r,f,fprime,error,a,b;
int d,iteration;

cout<<"input n: ";
cin>>n;
cout<<"input x: ";
cin>>x;
cout<<"input an initial guess at root, -1 if unsure: ";
cin>>r;
cout<<"input amount of decimal values: ";
cin>>d;
do{
if(r!=-1)
{
r=r;
}
else if(r==-1)
{
srand(r);
}
f=pow(r,n)-x;
fprime=n*pow(r,n-1);
a=x-(f/fprime);
b=a;
}while(a!=.01);
for(b=a;b=.01;b--)
for(iteration=1;iteration<=15;iteration++)

cout< cout< < return 0;
}


this is all the code I have produced...I am having major trouble in the do loop....that is what is messing me up....I need to produce when the user inputs all the values newton's method........as it does over and over in the do loop the program should print the iteration #,current estimate of the solution, and error(absolute of last estimate - current estimate) when it hits 0...this is due tomorrow please help!!

___________________
ATB -Let u go
Iio - Rapture(riva edit)
Dj Encore - I see right through you
Lasgo - something

The best vocal tunes on LI RIP(2001-2002)

it works on the complier but does not output anything...something wrong with the due loop..

___________________
ATB -Let u go
Iio - Rapture(riva edit)
Dj Encore - I see right through you
Lasgo - something

The best vocal tunes on LI RIP(2001-2002)

try to debug it..maybe by puting a cout in the loop to see what happens and if the loop is executing correctly or not...

seems like I need to make a recursive loop of the
f=pow(r,n)-x;
fprime=n*pow(r,n-1);
a=x-(f/fprime);

because everytime it solves for A it needs to be plugged back inside the a to get a new a.

___________________
ATB -Let u go
Iio - Rapture(riva edit)
Dj Encore - I see right through you
Lasgo - something

The best vocal tunes on LI RIP(2001-2002)

mah friend, i gave u like 4 function definitions up there? WHY the HECK??? are you writing spaghetti code. This program would be so easy, if you used a 'top-down' approach to it, but u seem to hate writing functions. And yes, it is a GREAT application for recursive functions, if you want it to be (the CPU cache likes recursion, u know?)

anyhow, why are you computing a new random seed in the do loop?

why not use a while loop?

oh and 'error' is a reserved word, u shouldn't be using that as a variable...

___________________

get font

I see your 4 Crushs and raise you 3 As The Rush Comes. - Yan from PvD's first summerstage event in '03

my problem was I did not actually make algo's to calculate the table and that I have done by actually thinking finally....the newton's method is easy because it is a formula..but the hard part is making the repating algo's of the formula in the loop of going to .01 and subtracting the calculated value - current value....I will post up the working code today because I have half of it working good....amd LAB to finish it in

___________________
ATB -Let u go
Iio - Rapture(riva edit)
Dj Encore - I see right through you
Lasgo - something

The best vocal tunes on LI RIP(2001-2002)