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

PHP webpage & array print issue
I have this code running, and it works perfectly … however, see my bottom bit about what I see

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

onClick='location.href=index.htm'> not working
Below is my code:

echo "<input type='button' value='redirect' onClick='location.h

php mail form text wont appear / javascript included
Guys/gals...

I am running into a problem whereby I have a great piece of javascript code that

SELECT * FROM users WHERE Users are not in Blocked
How do I select all users from users table where there users_id is not stored in the block table

image upload, resize THEN submit form
Ok so I have a form that requires the user to upload an image, and then do something with that image

Menu restriction
How can I restrict the individual menu that would appear when a user logs in so that all users are c

upload form file types....
Hey all, I am learning PHP and I am writing a script from the W3C Schools tutorials for uploading fi

Unable to retreve the values from Mysql Query
Hi,

Here is the php code that I have, Query is running properly in phpmyadmin and is resu

Pagination won't carry results past page 2.
Hi all,

I've worked out my pagination script and its paginating fine until I click next from

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