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

How to make a input/output field with multiple lines
Hello.
I put a input/output field on the screen but I could not change height of it. I need to

Sql and php order list script problems
Hi im having a few problems with trying to get the coding right on a orders list ive done (or trying

Restricted access to sub-folder in iis6 doesn't work?
Basically I'm trying to add restriction to sub-folder (which contains pdf) in web.config for iis6 as

help with Get_
ok some how this is not working i am not sure what i am doing wrong here but what this does is when

Need Help with a query
Hello,
For some reason I am just not getting the right answer when I do this query and not quite

PHP loop
Okay so I have several "articles" stored in a mysql database and am attempting to echo tho

PEAR Email Attachment w/ $gpg
I have no issues with this code if I take out the attachement section and include the info in the em

Parse Error with doctype
I'm getting a parse error with this simple code. I don't get it. It worked one time then when I relo

Oracle Connectivity
Hi Every One,

Can we access SAP from oracle database.If it possible then please spec

scandir clients directory
hi,
how can i scandir the clients directory? i need a script that when i click a button it will u

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