John Billingham
University of Nottingham
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Question
Why does fmincon using the sqp algorithm need a full matrix to specify linear constraints?
I need to specify that some of the variables in my optimization need to be ordered, so v_i-v_(i+1)<0 for i = N_1 to N_2. This ...
2 years ago | 2 answers | 1
2
answersQuestion
Spline with clamped end conditions using griddedInterpolant
I can create a piecewise polynomial spline with clamped end conditions from vectors x and y using pp = spline(x,[dy1 y dy2]) ...
3 years ago | 1 answer | 0
1
answerQuestion
How can I clear persistent variables from a function using only its handle?
For example, say I have a simple function, _test1_, function test1 = test1(x,y) persistent k if isempty(k), k = sum(y); e...
8 years ago | 2 answers | 0
2
answersQuestion
How can I create an ordinary floating point function from a symbolic array
If I have some code that generates a symbolic array, I'd like to be able to turn it into a function that takes floating point in...
8 years ago | 1 answer | 0
1
answerSolved
The Hitchhiker's Guide to MATLAB
Output logical "true" if the input is the answer to life, the universe and everything. Otherwise, output logical "false".
10 years ago
Question
How can I use zlib in a C mex file and use gz compression?
I need to use zlib to do gz compression within a C mex file. Something like #include < zlib.h > gzFile fi = gzopen(f...
10 years ago | 1 answer | 0
1
answerQuestion
How can I convert individual guis into a single tabbed gui?
I have a gui that pops up another gui when a button is pressed. I'd like to convert this into a single gui with two tabs. Can an...
10 years ago | 1 answer | 0
1
answerQuestion
Is it impossible to use OpenMP in mex files with the only free C++ compiler that's compatible with MATLAB (Microsoft SDK 7.1)?
Really?
10 years ago | 1 answer | 1
1
answerQuestion
Accessing a cell array of cell arrays in a C++ mex file
I'm writing a large code that requires me to use a cell array of cell arrays of single precision real matrices. This may seem od...
11 years ago | 1 answer | 0
1
answerQuestion
Problem with simplify(x^(1/log(x)).
>> sym x; >> assume(x>0) >> simplify(x^(1/log(x)),'IgnoreAnalyticConstraints',true) >> ans = x^(1/log(x)) Note that x^(1/...
11 years ago | 1 answer | 0
1
answerQuestion
Struggling to distribute a cell array across several parallel workers
I have some code, part of which a structure of the form below. for a = 1:A for b = 1:B for c = 1:C f...
11 years ago | 0 answers | 0
0
answersQuestion
Finding parfor baffling: Can anybody explain to me why this little bit of code works with for,but not with parfor?
function B = partest A = 1:4; B = zeros(1,4); parfor j=1:2 B([j j+2]) = A([j+2 j]); end The...
11 years ago | 2 answers | 2
