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

Fetching array then reversing it
Hi, I have a simple problem, I'll try to explain it as best I can:
News entries in my database ar

OOP help
okay so i have a class im making it has everything setup i just need to randomize the 2 variables an

Query failed issue with php script but works fine in mssql manager!
hi i have the script below which copies data from one table to another but will only insert new data

How to use Ajax to verify data on a DB ?
Hello everyone, well i want to know how to check a value if it exists or not on a Data base and capt

SAP FICO learning materials
Hi all,
I am new to this world of SAP FICO. I have taken training on SAP FICO, but was wonderin

New to PHP and just trying to understand a little code.
I hope I'm not annoying anyone or breaking the rules but I was wondering about this bit of code righ

Asset Transfer from One plant to another within same company code
Hi,

Please advise how to transfer one asset from one plant to another plant within same c

standard ALV application toolbar, into custom report....
HI,

I have a question regarding displaying standard ALV menu path and application toolbar

problem with php server update from mid 2009
Hi,

I have this navigation menu on 2 websites which used to work just fine. After a recent up

Variable passed to each() is not an array or object
Hi,

This is a email a friend type of form, and it isn't working anymore.

<?

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