Naor Movshovitz

Last seen: 1 month 前 | 自 2006 起处于活动状态

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Professional Interests: physical modeling; rigid-body dynamics; granular mechanics; planetary collisions

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Documentation error for polyval ouput?
The documentation for polyval describes the optional output argument delta like this: "Standard error for prediction, returned ...

5 years 前 | 1 个回答 | 0

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Huge overhead in fsolve due to fsolve>createExitMsg()
Is it just me or is the fancy exit messaging in |fsolve| creating huge overhead?I imagine this might impact other |optim| toolbo...

7 years 前 | 2 个回答 | 4

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How to derive a subclass that is a "frozen" state of another class?
Suppose |dynClass| has lots of dependent properties calculated on the fly and/or read from private properties, based on complica...

7 years 前 | 0 个回答 | 0

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How to test if a function handle belongs to a particular package?
I have a method that accepts a function handle and then needs to branch depending on whether that function is part of |+package1...

7 years 前 | 2 个回答 | 0

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Is fullfile(0,0) undocumented behavior or bug?
What is the purpose, if any, of non-char inputs to |fullfile|? >> fullfile(0) > In fullfile>refinePath (line 93) In ...

7 years 前 | 1 个回答 | 0

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Can I share a copy of a CONSTANT large array between workers of a parpool?
Answering my own question after some more googling and doc search. I am not 100% sure but I think the right answer is: no, this ...

7 years 前 | 1

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Can I share a copy of a CONSTANT large array between workers of a parpool?
I have an N-by-N array, |data|, of _constant_ data that needs to be accessed by each worker of a parallel pool in a |parfor| loo...

7 years 前 | 2 个回答 | 1

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Can an object with a `Transient` property be used in a parfor loop?
In a class I am using a private property |A|, an |NxN| matrix, to store data that is expensive to compute and may be used many t...

7 years 前 | 1 个回答 | 0

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How bad is the performance of run time introspection?
From the doc <https://www.mathworks.com/help/matlab/matlab_prog/techniques-for-improving-performance.html (Techniques for improv...

8 years 前 | 1 个回答 | 1

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is interp1(x, v, x(k), mtd) == v(k) always true?
is interp1(x, v, x(k), mtd) == v(k) always true or does it depend on method and/or type of x and v? Followup: is the an...

8 years 前 | 1 个回答 | 0

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Does the access method of a dependent property get called twice when the property is indexed into?
Confirmed Walter's comment. Indeed the culprit is the keyword end. Here is minimal working example. classdef Untitled ...

8 years 前 | 0

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Does the access method of a dependent property get called twice when the property is indexed into?
I have a class with a dependent property z. The method get.z(obj) returns a vector. This: y = myObj.z(end); appears to c...

8 years 前 | 1 个回答 | 0

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How to make published html look as good as the blogs on MATLAB Central?
Check out any of the posts on Cleve's Corner, for example <http://blogs.mathworks.com/cleve/2016/06/09/math-and-music/ this one>...

8 years 前 | 1 个回答 | 1

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Fastest alternative to |y = ones(size(x))| ?
The profiler red flagged this line, in a small function that is called by an inner-loop computation: ... if n == 0 ...

8 years 前 | 2 个回答 | 0

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What test is validateattributes() using to check for attributes 'positive' or 'nonnegative' ? (possible bug)
Suppose a class MyClass with overloaded operators for comparison with numeric values. In other words, I can call obj = MyCl...

9 years 前 | 1 个回答 | 0

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How to make user-defined type pass as numeric?
Suppose I have a defined type that behaves like a number. I would like it to pass the test: validateattributes(x, {'numeric...

9 years 前 | 1 个回答 | 1

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Can webread(url) be used to read a file?
url = 'file:///c:/filename'; raw = webread(url); fails complaining that the file:// protocol is not supported. Can it be...

9 years 前 | 0 个回答 | 1

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Is it possible to disable datatips in the debugger?
It's a useful feature but unfortunately it causes my screen to flicker and change resolution. Until this bug is resolved (if eve...

10 years 前 | 0 个回答 | 0

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How does "warm-up" overhead scale with data size or iteration count?
Everyone knows that when an M-file is run the first time in a Matlab session it runs much slower than the following next runs. T...

12 years 前 | 1 个回答 | 3

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Can MATLAB tell me which gpu device is the one connected to the display?
For example, with a GTX590, I have two gpu devices to choose from. Now my theory is that for CUDA kernel performance it might be...

12 years 前 | 4 个回答 | 1

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How can I extract just the "real" axes from figures? Filtering out handles to annotation and legend.
Here is a scenario. You have a large number of figures open. Say each figure has a "main" axes showing some line plots, and also...

13 years 前 | 1 个回答 | 0

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launching MATLAB from the context menu (Windows 7)
Found it. Apparently previous versions of MATLAB installers added the full path of the MATLAB runtime to HKEY_LOCAL_MACHINE...

13 years 前 | 0

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launching MATLAB from the context menu (Windows 7)
For several years I have been using the following hack, in windows, for convenience. Add the key: |HKEY_CLASSES_ROOT\*\shell\...

13 years 前 | 1 个回答 | 0

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Naor Movshovitz

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