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Find the 9's Complement
Find the 9's complement of the given number. An example of how this works is <http://electrical4u.com/9s-complement-and-10s-c...

fast 9 Jahre vor

Gelöst

Compute Fibonacci Number
Compute the _n_-th Fibonacci Number f(0) = 0, f(1) = 1, f(2) = 1, f(3) = 2, ... f(42) = 267914296

fast 9 Jahre vor

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Parasitic numbers
Test whether the first input x is an n-parasitic number: <http://en.wikipedia.org/wiki/Parasitic_number>. ( _n_ is the second in...

fast 9 Jahre vor

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Rotate input square matrix 90 degrees CCW without rot90
Rotate input matrix (which will be square) 90 degrees counter-clockwise without using rot90,flipud,fliplr, or flipdim (or eval)....

fast 9 Jahre vor

Gelöst

Matrix with different incremental runs
Given a vector of positive integers a = [ 3 2 4 ]; create the matrix where the *i* th column contains the vector *1:a(i)...

fast 9 Jahre vor

Gelöst

N-Dimensional Array Slice
Given an N-dimensional array, _A_, an index, _I_, and a dimension, _d_, return the _I_ th elements of _A_ in the _d_ dimension. ...

fast 9 Jahre vor

Gelöst

Removing rows from a matrix is easy - but what about inserting rows?
Assume A is a 5-by-5 matrix. A([2,4],:) = [] is a quick way to remove rows 2 and 4. Can you find a quick way to insert rows into...

fast 9 Jahre vor

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Permute diagonal and antidiagonal
Permute diagonal and antidiagonal For example [1 2 3;4 5 6;7 8 9] -> [3 2 1;4 5 6;9 8 7] WITHOUT diag function (and variable n...

fast 9 Jahre vor

Gelöst

Set some matrix elements to zero
First get the maximum of each *row*, and afterwards set all the other elements to zero. For example, this matrix: 1 2 3 ...

fast 9 Jahre vor

Gelöst

Calculate the area of a triangle between three points
Calculate the area of a triangle between three points: P1(X1,Y1) P2(X2,Y2) P3(X3,Y3) these three points are the vert...

fast 9 Jahre vor

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Is the Point in a Circle?
Check whether a point or multiple points is/are in a circle centered at point (x0, y0) with radius r. Points = [x, y]; c...

fast 9 Jahre vor

Gelöst

Get the elements of diagonal and antidiagonal for any m-by-n matrix
In the problem <http://www.mathworks.com/matlabcentral/cody/problems/858-permute-diagonal-and-antidiagonal Problem 858. Permute ...

fast 9 Jahre vor

Gelöst

"Low : High - Low : High - Turn around " -- Create a subindices vector
Let two vectors *lo* and *hi* be given. The job is to create a index vector like so idx = [lo(1):hi(1) lo(2):hi(2) ...]...

fast 9 Jahre vor

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We love vectorized solutions. Problem 1 : remove the row average.
Given a 2-d matrix, remove the row average from each row. Your solution MUST be vectorized. The solution will be tested for ac...

fast 9 Jahre vor

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Divisible by 6
Pursuant to the <http://www.mathworks.com/matlabcentral/cody/problems/42404-divisible-by-2 first problem> in this series, this o...

fast 9 Jahre vor

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Divisible by 5
Pursuant to the <http://www.mathworks.com/matlabcentral/cody/problems/42404-divisible-by-2 first problem> in this series, this o...

fast 9 Jahre vor

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Divisible by 4
Pursuant to the <http://www.mathworks.com/matlabcentral/cody/problems/42404-divisible-by-2 first problem> in this series, this o...

fast 9 Jahre vor

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Divisible by 3
Pursuant to the <http://www.mathworks.com/matlabcentral/cody/problems/42404-divisible-by-2 first problem> in this series, this o...

fast 9 Jahre vor

Gelöst

Divisible by 2
This is the first problem in a set of "divisible by x" problems. You will be provided a number as a string and the function you ...

fast 9 Jahre vor

Beantwortet
Extract every subexpression in a symbolic expression between + and -
Depends whether you have muPAD. In the Symbolic Toolbox, you can use E = expand(E); to separate the terms, but then you ...

fast 9 Jahre vor | 0

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Gelöst

what can you get for exactly amount of money
You go to store, where each product has price. Prices are in vector s = [ 195 125 260 440 395 290] and you have amount ...

fast 9 Jahre vor

Gelöst

angle in regular polygon
Make a function which returns measure of interior angle in x-side regular polygon. x is as input. Please pay attention, that 1 ...

fast 9 Jahre vor

Beantwortet
How do I call and multiply handles from an array in integral or quad function?
You can replace B by a cell array of functions, and then call the functions when it's time to integrate: Bfuns = {@(x) ones...

fast 9 Jahre vor | 1

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Beantwortet
Storing a struct in a cell
Try curly brackets: groupavg{:,i} = averages.timelock.(subject{i}); This places the RHS _inside_ the cell element instea...

fast 9 Jahre vor | 2

| akzeptiert

Beantwortet
In an assignment A(:) = B, the number of elements in A and B must be the same.
Look at the first part of a line of code in |projectmatrix.m|: dx(2) = ((k1 - k2)/m1)*u1 On the left side, you have a sc...

fast 9 Jahre vor | 0

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Beantwortet
Simplify symbolic expression for optimized code generation
I don't know how particular you are about the exact form of the simplified expression, but this certainly produces a simpler exp...

fast 9 Jahre vor | 0

Beantwortet
How to calculate euclidean distance for 3 vectors using matlab
You can find the Euclidean distance between two vectors |v1| and |v2| using <http://www.mathworks.com/help/matlab/ref/norm.html ...

fast 11 Jahre vor | 0

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Beantwortet
What answers should be "Answer of the week"?
Here is <http://www.mathworks.com/matlabcentral/profile/authors/869215-john-d-errico John D'Errico> again, answering the questio...

fast 11 Jahre vor | 0

Beantwortet
one thing i need to know
For your specific problem, some useful pages are <http://www.mathworks.com/company/newsletters/articles/matrix-indexing-in-matla...

fast 11 Jahre vor | 1

Beantwortet
smooth a surface plot
You can make a mesh: [P1,P2] = meshgrid(P1,P2); Then use |interp2|. *EDIT:* Corrected typo.

fast 11 Jahre vor | 1