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How to index lmi constraints?
Something like this would be a complete vectorization n = 3; [i,ii] = find(triu(ones(n),1)); index = sub2ind([n n],i,...

presque 11 ans il y a | 1

| A accepté

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mixed integer(all are binary) problem
If you only have linear constraints, and the problem is as small as it is here, you should really use a dedicated mixed-integer ...

environ 11 ans il y a | 0

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solve an inequality with LMI approach
With the MATLAB Toolbox YALMIP, and some SDP solver installed (such as SDPT3, SeDuMi, Mosek etc) it would be (you have not clear...

environ 11 ans il y a | 1

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about the use cplex for solving LP in matlab
Late answer but anyway... 1. Why have you installed such an old version? 12.6 has been out for a long time now 2. This err...

environ 11 ans il y a | 0

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How to solve affine Linear Matrix Inequlaity?
Standard approach is to use a common Lyapunov function, i.e., define two LMIs, one for h = 0 and one for h = -45.86. From convex...

environ 11 ans il y a | 1

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Why LMI toolbox/ Yalmip get a semi-positive definite matrix as the answer?
Strict inequalities are not really supported http://users.isy.liu.se/johanl/yalmip/pmwiki.php?n=Blog.Prepare-your-code BTW...

plus de 11 ans il y a | 0

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YALMIP not able to find PENBMI solver for solving bilinear matrix inequlality
1. You are using a very very old version of YALMIP 2. SET is obsolete 3. Yes, you have to install PENBMI. YALMIP does not ...

plus de 11 ans il y a | 0

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Nonlinear optimal control by using yalmip
The problem is that you are creating a nonconvex nonlinear problem, and fmincon simply fails to find a solution. You see this if...

plus de 11 ans il y a | 1

A résolu


Number of lattice points within a circle
Find the number of points (x,y) in square lattice with x^2 + y^2 =< n. This is related to Jame's <http://www.mathworks.com/matla...

plus de 11 ans il y a

A résolu


Swap the first and last columns
Flip the outermost columns of matrix A, so that the first column becomes the last and the last column becomes the first. All oth...

environ 12 ans il y a

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Back and Forth Rows
Given a number n, create an n-by-n matrix in which the integers from 1 to n^2 wind back and forth along the rows as shown in the...

environ 13 ans il y a

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Most nonzero elements in row
Given the matrix a, return the index r of the row with the most nonzero elements. Assume there will always be exactly one row th...

environ 13 ans il y a

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Remove any row in which a NaN appears
Given the matrix A, return B in which all the rows that have one or more <http://www.mathworks.com/help/techdoc/ref/nan.html NaN...

environ 13 ans il y a

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Finding Perfect Squares
Given a vector of numbers, return true if one of the numbers is a square of one of the other numbers. Otherwise return false. E...

environ 13 ans il y a

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Check if sorted
Check if sorted. Example: Input x = [1 2 0] Output y is 0

environ 13 ans il y a

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Weighted average
Given two lists of numbers, determine the weighted average. Example [1 2 3] and [10 15 20] should result in 33.333...

environ 13 ans il y a

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Who Has the Most Change?
You have a matrix for which each row is a person and the columns represent the number of quarters, nickels, dimes, and pennies t...

environ 13 ans il y a

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Fibonacci sequence
Calculate the nth Fibonacci number. Given n, return f where f = fib(n) and f(1) = 1, f(2) = 1, f(3) = 2, ... Examples: Inpu...

environ 13 ans il y a

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Determine whether a vector is monotonically increasing
Return true if the elements of the input vector increase monotonically (i.e. each element is larger than the previous). Return f...

environ 13 ans il y a

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Triangle Numbers
Triangle numbers are the sums of successive integers. So 6 is a triangle number because 6 = 1 + 2 + 3 which can be displa...

environ 13 ans il y a

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Make a checkerboard matrix
Given an integer n, make an n-by-n matrix made up of alternating ones and zeros as shown below. The a(1,1) should be 1. Example...

environ 13 ans il y a

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Find all elements less than 0 or greater than 10 and replace them with NaN
Given an input vector x, find all elements of x less than 0 or greater than 10 and replace them with NaN. Example: Input ...

environ 13 ans il y a

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Column Removal
Remove the nth column from input matrix A and return the resulting matrix in output B. So if A = [1 2 3; 4 5 6]; and ...

environ 13 ans il y a

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Select every other element of a vector
Write a function which returns every other element of the vector passed in. That is, it returns the all odd-numbered elements, s...

environ 13 ans il y a

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Add two numbers
Given a and b, return the sum a+b in c.

environ 13 ans il y a

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Determine if input is odd
Given the input n, return true if n is odd or false if n is even.

environ 13 ans il y a

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Find the sum of all the numbers of the input vector
Find the sum of all the numbers of the input vector x. Examples: Input x = [1 2 3 5] Output y is 11 Input x ...

environ 13 ans il y a

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Make the vector [1 2 3 4 5 6 7 8 9 10]
In MATLAB, you create a vector by enclosing the elements in square brackets like so: x = [1 2 3 4] Commas are optional, s...

environ 13 ans il y a