Matlab
in [Programming]
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delaunay3 error Hi, I use 'delaunay3' function in MATLAB. when i use this function with a small number of elements, I works well. But when i applied it for more than 100,000,000 elements, the error occurs as below ------------------------------------------------------------------------------------------------ ??? Error using ... 3 Aug 2010 23:31
Pricing swaptions based on implied vol I am having trouble pricing Swaptions in Matlab based on the implied volatility I get from Bloomberg. I was told Bloomberg (in their swaption calculator (SWPM)) uses Black's model. But when I compare the answers I get from using Black's model in Matlab, they do not at all correspond to the numbers I get from Bloom... 3 Aug 2010 22:25
governor parameter usually, the minimum and maximum gate opening gmin and gmax are 0 and 1 seperatelly in the book "Power System Stability and Control" by P. Kunder, but the gmin and gmax are 0.00016668 and 0.00016668*1.01 seperatelly in the demo of the web (http://www.mathworks.com/products/simpower/demos.html?file=/products/demos/ship... 3 Aug 2010 22:25
Alternative approach than "fmincon" to maximize a function under non-linear constraints Hi, I have been working on a problem for sometime now and have not been successful. I need to maximize a particular function under non-linear constraints. I am using fmincon for this purpose. The procedure followed is as below, and have the file names same as what I have been using. Script (*.m)-> 1. OPTIMIZE: t... 4 Aug 2010 01:42
An exact 1-D integration challenge - 67 - (erf, sqrt, arcsin) Hello, Mathematica: Integrate[Erf[ArcSin[z]]/Sqrt[1 + z], {z, 0, 1}] Maple: int(erf(arcsin(z))/sqrt(1 + z), z= 0..1); ? Cheers, Vladimir Bondarenko Co-founder, CEO, Mathematical Director http://www.cybertester.com/ Cyber Tester Ltd. -----------------------------------------... 4 Aug 2010 04:55
modelling class d amplifiers in simulink hye guys, I'm looking to model a class d amplifiers in simulink, any idea on how I can do that? I had already built the PWM generator, but I don't know how to connect it to the half bridge configuration (MOSFETS). I really need help here as I had been stucked doing this for days. Thanks in advance for any help. ... 3 Aug 2010 21:19
Programming Loops I am attempting to sum certain rows from a matrix that is 36192x222. I was thinking about using loops, because I only want the sum of certain rows. If you can give tips or examples on this that would be great. ... 3 Aug 2010 21:19
table modification Hi, I have got this kind of problem in matlab and i could not solve it from the last three weeks. I have this table like this table = 1 1 6 1 2 3 1 3 1 6 1 2 6 2 1 6 11 1 8 1 5 8 2 2 and i want to p... 4 Aug 2010 12:30
Analog input object timeout error Hi everyone, I'm using Matlab R2008a with data acquisition toolbox (version 2.12) to read data from an NI USB 6009 DAQ system. Matlab is running in bootcamp on a MacMini. I have a problem with my code which essentially reads values from DAQ in a loop and performs some processing on it. Even though data acquisition ... 3 Aug 2010 20:14
how to get rid of array index Hi all, I am calculating the errors for a fit to a data set using: [Q,R] = qr(jacobian,0); Rinv = inv(R); se = sqrt(sum(Rinv.*Rinv,2)*resnorm/dfe); I later need to import these error bars into a spreadsheet. However, the se elements are of the follwoing form: (1,1) 1.3053 (2,1) 1.2639 ... 3 Aug 2010 21:19 |