Taylor Series Function


Posted on 16th Feb 2014 07:03 pm by admin

So I am working a a project for my intro C++ class, and I am having some trouble with a function for approximating exp(x) using a taylor series. The taylor series approximations for exp(x) is: 1+x+((x^2)/2!)+((x^3)/3!+...., and I am supposed to approximate to "n" number of terms.

Thus far, my function is this:

Did you know?Explore Trending and Topic pages for more stories like this.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
double fact(int c) { int factorial=1; for ( int i = 1; i <= c; i++ ) { factorial *=i; } return factorial; } double taylor(double x, int n) { double approx; double sum; double value; for (int i=1; i<=n; i++) { int factorial=1; factorial*=i; sum=((pow(x,i))/fact(i)); value+=sum; } approx = 1+value; return approx;

Now this does work if I just run it by itself, i.e. just do something like "cout << taylor(x,n)". But whenever I call this function within another function, it does not work! It is kinda hard to explain, but anyone have any ideas?

Thanks
Trending TodaySee what people are reading
No comments posted yet

Your Answer:

Login to answer
197 Like 49 Dislike
Previous forums Next forums
Other forums

need help with php get
i have a option box that gets filled with dates, but how do i get once the option value has been cli

Bandwidth monitoring?
Hi guys,

I need a little information I have written a php app and I occurred to that I need

Retrieving Data from Two Different Databases
Hello All,

Ran into another problem and would appreciate some help! I have two datab

socket communication between c++/java and sending image
hi,

i have a class in c++ called win32_sockserver which creates socket to java. i am trying

Need help making login verification cleaner...
I use the below to verify user login. I first check the cookie for the id, ip and a unique id. If it

Socket Server
In my following socket server, I am trying to listen to a connection through port 12345 in my web br

Need help with PHP/MySQL drop down menu
I need help on how I can implement a drop down menu which queries mysql database and output the avai

Need help to modify php ELSE code
I'm trying to find a way to have the php code display a message if there is no inventory listed in t

Just wondering what you think about my site
I am new to phpfreaks i just seen this form and thought it would be cool to see what other thought a

Clean URLs
Hi I was wandering if anyone has ever implemented URLs on their PHP run website using URLS like wiki

Sign up to write
Sign up now if you have flare of writing..
Login   |   Register
Follow Us
Indyaspeak @ Facebook Indyaspeak @ Twitter Indyaspeak @ Pinterest RSS



 
© indyaspeak.com. All Rights Reserved.
Play Free Quiz and Win Cash