similar to: evaluate polynomial

Displaying 20 results from an estimated 7000 matches similar to: "evaluate polynomial"

2009 May 12
2
newtons method
Hi, Does anyone know how to code newton's method for finding the roots of polynomial functions? im not sure whether i need to do this manually, or just code something with a loop to stop when it gets to the desired result thanks guys! _________________________________________________________________ Looking to move somewhere new this winter? Let ninemsn property help [[elided Hotmail
2009 May 12
2
newtons method
Hi, Does anyone know how to code newton's method for finding the roots of polynomial functions? im not sure whether i need to do this manually, or just code something with a loop to stop when it gets to the desired result thanks guys! _________________________________________________________________ Looking to move somewhere new this winter? Let ninemsn property help [[elided Hotmail
2009 May 16
1
Gamma
Hey, I am having trouble graphing the following function √2Γ(n/2)/[√n − 1Γ((n − 1)/2 for the values of n between 2 and 50. i know that Γ(n) = (n-1)!, which in R is factorial(n-1) When i type that into R, using y <- function(n)..... and then plot(y,2,50), it doesnt give me anything meaningful, in fact, it comes up with a message saying something like "in gamma(n+1) ploted" or
2009 May 17
2
Newton's method for finding roots
Hey guys, i have a relatively simple problem. I need to use netwon's method to find the root of a polynomial, lets say x^3-2x-1 i start off with p <- function(x) x^3-2*x-1 My method, which im sure is very amateur, is to type another function, which is the derivative of p, and after picking an initial value to start off with, i follow the steps of newton's method manually, but i dont
2009 May 19
1
fitting distribution
Hey Guys, i have the sample variances for 1000 samples, and i want to fit it to a chi-squared distribution. after making a loop for the simulation initially, i have the following code to compute the variances samples = replicate(n, rnorm(m, 0, 1), simplify=FALSE) variances = sapply(samples, var) summary(variances) can someone please help me fit this to a chi-squared distribution with n degrees
2009 May 13
11
Simulation
Dear R users, Can anyone please tell me how to generate a large number of samples in R, given certain distribution and size. For example, if I want to generate 1000 samples of size n=100, with a N(0,1) distribution, how should I proceed? (Since I dont want to do "rnorm(100,0,1)" in R for 1000 times) Thanks for help Debbie
2009 Oct 01
2
matrix exponential
Hi Guys, Im trying to find the exponential of a matrix. Can someone please help me do this? Thanks a lot _________________________________________________________________ View photos of singles in your area Click Here =1&lage=18&uage=55&cl=14&sl=0&dist=50&po=1&do=2&trackingid=1046138&r2s=1&_t=773166090&_r=WLM_EndText
2009 May 16
1
Gamma function
Hi Guy, I am having trouble graphing the following function √2Γ(n/2)/[√n − 1Γ((n − 1)/2 for the values of n between 2 and 50. i know that Γ(n) = (n-1)!, which in R is factorial(n-1) When i type that into R, using y <- function(n)..... and then plot(y,2,50), it doesnt give me anything meaningful, in fact, it comes up with a message saying something like "in gamma(n+1) ploted" or
2009 May 21
1
Inverse
Hi Guys, i think this is a relatively simple question. I have coded the following polynomial function y= function(x) x^3-2*x^2+1 I need to find the inverse of this, but the code i am using now isnt returning what i want it to. What is the general code for finding an inverse function? Thanks guys _________________________________________________________________ View photos of singles in
2009 May 12
2
(no subject)
Hi, I have a question about derivatives of functions. if i have the following function, f <- function(x) x^3-2*x^2+3*x-5 i need a simple function for the derivative of this with respect to 'x', so that i can then sub in values to the the derivative function, and use Newtons method of finding a root for this. Please help. Regards, Kon Knafelman
2009 Mar 21
1
(no subject)
Hi there, Could you please remove me from your mailing list? Thank you Daniel _________________________________________________________________ Need a new place to rent, share or buy? Let ninemsn property help.
2004 Aug 09
1
returns the value of a polynomial of degree n evaluated at x.
> Background: > OS: Linux Mandrake 9.1 > release: R 1.9.0 > editor: Xemacs 21.4 > frontend: ESS 5.1.23 > --------------------------------- > > Colleagues > Is there a function in R that is similar to polyval in matlab? (y = polyval(p,x) returns the value of a polynomial of degree n evaluated at x. The input argument p is a vector of length n+1 whose elements are the
2004 Aug 09
0
returns the value of a polynomial of degree n evaluated a t x.
Try something like: install.packages("polynom") library(polynom) predict(polynomial(rev(p)), x) HTH, Andy > From: McClatchie, Sam (PIRSA-SARDI) > > > Background: > > OS: Linux Mandrake 9.1 > > release: R 1.9.0 > > editor: Xemacs 21.4 > > frontend: ESS 5.1.23 > > --------------------------------- > > > > Colleagues > >
2010 Feb 17
4
Unrecognized prilocaldialplan NPI modifier
Only a warning, and doesn't seem to do anything bad. But I can't seem to figure out what these warnings mean? -- Requested transfer capability: 0x00 - SPEECH [Feb 17 12:33:03] WARNING[10750]: chan_dahdi.c:3096 dahdi_call: Unrecognized prilocaldialplan NPI modifier: k [Feb 17 12:33:03] WARNING[10750]: chan_dahdi.c:3096 dahdi_call: Unrecognized prilocaldialplan NPI modifier: o [Feb 17
2007 Apr 29
2
Early audio(progress) and MOH
Hi, Is it possible to have MOH in early audio, while waiting for someone to pick up a Dial() call? (When using zap channels, I have early audio working with playback) H?kon Nessj?en Loopback Systems AS -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20070429/c901ff90/attachment.htm
2018 Jul 11
2
Connection refused (61)
sorry forgot to mention the port in the roundcube config file! $config['smtp_port'] = 587; On Wed, Jul 11, 2018 at 11:36 PM, Larry Rosenman <larryrtx at gmail.com> wrote: > What mail port are you expecting it connect to on 127.0.0.1? > > Here's my config. > $ grep -v "^//" config.inc.php > <?php > > /* Local configuration for Roundcube Webmail
2010 Mar 09
1
app_queue problem with Ringing state
Hi, This is the output from queue show 28: 47 (DAHDI/g0/12345678) (realtime) (Ringing) has taken no calls yet Why is the devicestate "Ringing" when no channels is calling this number, and the queue says "has taken no calls yet"? Is it picking up the general state of a random channel on g0 in dahdi? Or what is happening? It only seems to happen with this particular
2018 Jul 11
2
Connection refused (61)
connection refused! But why? On Wed, Jul 11, 2018 at 11:40 PM, Larry Rosenman <larryrtx at gmail.com> wrote: > What happens if you telnet 127.0.0.1 587? > > -- > Larry Rosenman http://www.lerctr.org/~ler > Phone: +1 214-642-9640 E-Mail: larryrtx at gmail.com > US Mail: 5708 Sabbia Drive, Round Rock, TX 78665-2106 > > ?On 7/11/18, 4:39
2018 Jul 11
2
Connection refused (61)
when using neomutt for the same system user, I can send and receive emails to everywhere Also, when installing roundcube, the test email function did succeed! So my SMTP server should be fine? On Wed, Jul 11, 2018 at 11:45 PM, Larry Rosenman <larryrtx at gmail.com> wrote: > Your smtp server isn't listening. > > Is it running, and binding to 127.0.0.1? > > > -- >
2010 Jan 27
2
CDR problems with Queue
Hi, I'm having problems with CDR's and Queues in Asterisk 1.6.1. Heres three examples: Normal call: User A calls in to asterisk, gets a PlayFile, and hangs up. This gives 1 CDR as expected. Call to a Queue and then a playfile afterwards: User A calls into asterisk, goes into a queue, asterisk calls user B. When user B hangs up a CDR for User A is generated. (no CDR for user B)