woodchips's articles:

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zeros flaw 14 63 (5/21/2012 8:40:06 PM) comp.soft-sys.matlab In playing with HPF class, a user tripped over an interesting problem. According to the help for zeros, one can use zeros to create a variable that is entirely zero, but with a given numeric class. For example... John

conv for uint64 arguments 0 73 (1/24/2012 3:47:09 PM) comp.soft-sys.matlab Interestingly, twice in the last few days (in two different applications) I've wanted to see conv working for uint64 vectors. I checked the latest release, but it does not include support. Anyone else see a ne... John

Modeling tool request and philosophy 7 56 (2/1/2010 3:25:25 PM) comp.soft-sys.matlab I frequently get e-mail requests for the ability to return confidence intervals on my SLM tools. While I would like to include this ability, there are fundamental problems with the idea. The standard method to ... John

Nehalem processors 0 68 (1/15/2010 2:00:23 PM) comp.soft-sys.matlab Has anyone used the Nehalem processor based Macs with 64 bit MATLAB? Any problems with them? (Any overheating issues with heavy CPU usage?) If I choose an older version Core 2 cpu, will it run 64 bit MATLAB on... John

Flag versus tag 11 43 (6/21/2009 12:19:01 PM) comp.soft-sys.matlab I don't think some individuals recognize there is a difference between adding the tag "spam" to a post, compared to flagging it as spam. Matlab central provides a link for each post, labeled "Flag as spam"... John

python repository? 1 46 (6/6/2009 4:34:34 PM) comp.lang.python Hi, I've written a large body of my work in MATLAB over the years. But it looks like I'll need to move to Python soon. Is there a common resource where people can post files for others to use such as the MATLA... woodchips

Bug: subfunctions versus overloaded functions 9 52 (5/14/2009 1:10:04 PM) comp.soft-sys.matlab I decided to change my nextprime code to allow inputs above 2^32, but still as doubles. This required that I had to change isprime to allow arguments above 2^32. Since isprime is a simple code, trivial even, us... John

column permutation to minimize the trace 9 49 (2/5/2009 6:50:04 PM) comp.soft-sys.matlab An interesting question popped up in something I was playing around with. Given an nxn matrix of positive numbers, find the column permutation which minimizes the trace. trace(A) = sum(diag(A)) When n is smal... John

polynom power 2 76 (12/2/2008 3:23:02 PM) comp.soft-sys.matlab Hi! I have to make a vector with the coificents of a polynom but now i have the [polynom in form (2x+1)^7 and i would like ti in form 5x^7+6x...... This is my first problem, the athe problem is how to make a ve... Shkelzen

polynom #2 2 54 (12/1/2008 2:28:02 PM) comp.soft-sys.matlab Hi! i want to make a polynom and get his power I try with polynom([vector]) but dont function, can u help me please. ... Shkelzen

woodchips's replies:

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to increase number of digits after decimal place in MATLAB 3 28 (12/9/2012 6:44:11 PM) comp.soft-sys.matlab How you can increase precision of answer (a number) in MATLAB? Actually I have to generate a chaotic time series using certain chaotic map. I got the series values but all of them are the same. I think if I cou... gourihalde1 (2)

Elliptic Curve Cryptanalysis Scales More Slowly Than O(n*log(n)) 1 25 (12/18/2012 1:11:37 PM) comp.soft-sys.matlab Why aren't people cracking public key crypto with the Lenstra algorithm? The algorithm scales as exp(sqrt(log(n)*loglog(n))), which is a benign function. Throw away the square root, to get exp(log(n)*lo... vaughan.andursen (4)

Bivariate Pchip 9 21 (1/16/2013 6:44:09 PM) comp.soft-sys.matlab Hi all, I would like to use Pchip function to interpolate my 2-dimensional data set. I'm actually using spline interpolation (with csapi function) but it doesn't work well. I think that Pchip will be bet... samar_garrab (7)

Substitution of Operators 2 21 (1/18/2013 12:27:08 PM) comp.soft-sys.matlab Hello everyone, I need to substitute one operator in my program with another operator (*. with *) but i do not know how it is possible. I would appreciate if anyone knows a function which do that. Thank... omid.yousefian88 (1)

averaging #7 4 16 (3/8/2013 10:36:08 AM) comp.soft-sys.matlab Dear Matlab users, I am new to Matlab so please go easy on me. I am trying to figure out how to do radial averaging on matlab. To make things a bit simple, lets say that I have a 4x4 matrix A with random nu... chemblue3 (2)

adding constraints to curve fitting / least squares code? 1 14 (3/9/2013 10:24:10 AM) comp.soft-sys.matlab Hello. I am using the curve fitting tool's generated code to obtain coefficient values for different functions that I'm adjusting to some data. One problem I often encounter with the data sets, though, is... adelahoz (1)

Generate non integer number 4 13 (3/13/2013 2:05:09 PM) comp.soft-sys.matlab Hi, I would know how I can generate a non integer number with the function randi without utilizing a division or multiplication. Maybe we know another function which only specifying the interval give the... max200790 (1)

Engr 151 Matlab Lab Help**Paypal For Help** 11 11 (3/13/2013 5:48:09 PM) comp.soft-sys.matlab Hi guys, I have 2 labs due for a beginners matlab course.. I am a senior and just need to pass this course. (I switched from ECET to ECE which is why I am taking a 151 class as a senior). Anyway I have an Elect... danpiz23 (2)

a cubic fitting curve in a set of (x, y, z) data ? 3 13 (3/21/2013 2:03:15 AM) comp.soft-sys.matlab Dear all, I have a set of scatter data (x, y, z). How to add a cubic fitting curve in this 3d plot? Thanks for the hint. Michael ... changks8881 (4)

How to get rid of obsolete function warning 3 22 (4/8/2013 11:54:10 PM) comp.soft-sys.matlab Hi all, Since I'm using randint function I receive: Warning: This is an obsolete function and may be removed in the future. Please use RANDI instead. To disable this warning, type ... ebsadeghian (131)