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
No comments posted yet

Your Answer:

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

PHP - HTTP Digest Authentication - Understanding Code Help
Hi Everyone,

This is my first time on your website and please excuse if I am asking silly que

Estimations and Effort
HI Gurus,

Would like to know whether SAP have a provision for carrying out the Project es

timezone change with date()
so i put all my times for posts in my made from scratch forum(not phpbb3 or sm)
in my mysql db u

timed header image rotation
I have a joomla site and I was trying to setup a rotating image based on timing NOT just refreshing

EU VAT Package 2010
Does any one know whether SAP will be developing new reporting functionality due the new VAT rules t

$_POST
Hi, I have 2 seperate php files, and i want my $_POSt["fname"] To go into both of them, Fo

what business processes?
Hi,

A general question. What business processes (like OTC - Order to Cach, P2P, R2R etc)

Checking if variable is 0 as opposed to NULL/Empty...
I'm trying to write some code that will retrieve a user's access level from my database and if it do

Production Order Enterprise Service to Manufacturing Exctn Sys (MES) ???
Hello Experts,

In our current landscape SAP ECC 5.0 is integrated to MES system via PI 7.

Troubles with a spider class
I am building a spider that will crawl through random whitepages (eg. anywho.com, switchboard.com, w

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



Play Free Quiz and Win Cash