Hi,
i tried to evaluate the 2F1(a,b,c,z)
hypergeometric function for a=1, b=2-0.1i,
c=2.5-0.01i and z=-5e8. I've used the numerical
recipes routine but this routine couldn't act with
this large value of z. Does someone know a C or
C++ routine, which can act with complex b, c and
large values of z.
Thanks in advance
Peter
1  2641 
On May 20, 1:57*pm, Peter Graf <Graf@_nospam_g mx.dewrote:
Hi,
i tried to evaluate the 2F1(a,b,c,z)
hypergeometric function for a=1, b=2-0.1i,
c=2.5-0.01i and z=-5e8. I've used the numerical
recipes routine but this routine couldn't act with
this large value of z. Does someone know a C or
C++ routine, which can act with complex b, c and
large values of z.
Questions of this nature are better asked on news:sci.math.n um-
analysis.
This one is so popular it ought to be a FAQ.
I have posted code for this before, and I recall that it was
surprisingly simple.
Can't find the code right now, though. This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
by: Christos TZOTZIOY Georgiou |
last post by:
Hi all,
this post contains at the end a handy module that I've used quite often
when I wanted to analyse the occasional complex expression and how it
was to be evaluated.
The function analyse_expression is called with a single string argument
containing an expression. Names are allowed (actually, preferred over
numbers ;-), since the function eval's in a protected dictionary, where
names are generated as needed.
|
by: Brian Kazian |
last post by:
Here's my problem, and hopefully someone can help me figure out if there is
a good way to do this.
I am writing a program that allows the user to enter an equation in a text
field using pre-existing variables. They then enter numerical values for
these variables, or can tell the program to randomize the values used within
a certain bounds. My problem is taking in this equation they have written
in the text field and converting it into...
|
by: Bhushit Joshipura |
last post by:
This post contains one question and one proposal.
A. May I know why order of evaluation of arguments is not specified in
C/C++?
I asked a question in comp.lang.c++ for the following possibility and
because the languages do not specify the order of evaluation, doing so
was an error.
int B::f ( int i, int j = i + 1 ) { // j defaults to i + 1
|
by: Edward Hua |
last post by:
Hi,
I'm wondering if there is a function written in C that
computes the inverse hypergeometric distribution (i.e., not the density
function, but the cumulative distribution) that's been written by anyone?
If it's in some online resource, please give me its URL; if it's in print,
plese give me the title of the book and/or where it is in the book.
Thanks in advance.
|
by: dragoncoder |
last post by:
Consider the following code.
#include <stdio.h>
int main()
{
int i =1;
printf("%d ,%d ,%d\n",i,++i,i++);
return 0;
}
| | |
by: Raven |
last post by:
Hi to all, I need to calculate the hpergeometric distribution:
choose(r, x) * choose(b, n-x)
p(x; r,b,n) = -----------------------------
choose(r+b, n)
choose(r,x) is the binomial coefficient
I use the factorial to calculate the above formula but since I am using
large numbers, the result of choose(a,b) (ie: the binomial coefficient)
|
by: berns |
last post by:
Hi All,
A coworker and I have been debating the 'correct' expectation of
evaluation for the phrase a = b = c. Two different versions of GCC
ended up compiling this as b = c; a = b and the other ended up
compiling it as a = c; b = c. (Both with no optimizations enabled).
How did we notice you may ask? Well, in our case 'b' was a memory
mapped register that only has a select number of writable bits. He
claims it has been a 'C...
|
by: Rasjid |
last post by:
Hello,
I have just joined and this is my first post.
I have never been able to resolve the issue of order of evaluation in
C/C++ and the related issue of precedence of operators, use of
parentheses.
1) "The order of evaluation of subexpressions is determined by the
precedence and grouping of operators."
|
by: Johannes Nix |
last post by:
Hi,
this might be of interest for people who are look for practical
information on
doing real-time signal processing, possibly using multiple CPUs, and
wonder
whether it's possible to use Python for audio-type worst case
latencies (around 25 ms).
I've done that in my PhD work, both with real-time requirements on
dual-CPU
|
by: marktang |
last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look !
Part I. Meaning of...
|
by: Hystou |
last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it.
First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
| | |
by: Oralloy |
last post by:
Hello folks,
I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>".
The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed.
This is as boiled down as I can make it.
Here is my compilation command:
g++-12 -std=c++20 -Wnarrowing bit_field.cpp
Here is the code in...
|
by: agi2029 |
last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own....
Now, this would greatly impact the work of software developers. The idea...
|
by: conductexam |
last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one.
At the time of converting from word file to html my equations which are in the word document file was convert into image.
Globals.ThisAddIn.Application.ActiveDocument.Select();...
|
by: TSSRALBI |
last post by:
Hello
I'm a network technician in training and I need your help.
I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs.
The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols.
I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
|
by: 6302768590 |
last post by:
Hai team
i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
|
by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
| | |
by: bsmnconsultancy |
last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...
| |
