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Polite numbers. N-th polite number.
A polite number is an integer that sums of at least two consecutive positive integers. For example _7 = 3+4_ so 7 is a polite...

fast 12 Jahre vor

Problem

What is the scope of variables in Matlab ?
How to do this little hack ? a=10; b=5; y=change_var(a,1); assert(isequal(a,1))

fast 12 Jahre vor | 1 | 12 Lösungsvorschläge

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LocateMembership | Membership of Matrix in another matrix
Let a and b be given by a = [ 2 1 1 1 1 2 1 1 1 1 2 1 1 1 1 2 4 0 0 0 ] b = [ 2 1 ...

fast 12 Jahre vor

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GJam 2012 Qualifier: Tongues
This Challenge is a Warm-Up for <http://code.google.com/codejam/schedule.html Google Code Jam 2014> Qualifying round coming up o...

fast 12 Jahre vor

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Pascal's pyramid
In Pascal's triangle each number is the sum of the two nearest numbers in the line above: 1 1 1 ...

fast 12 Jahre vor

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Find Elements in Range
Based on a question on <http://www.mathworks.com/matlabcentral/answers/ MATLAB Answers>. Find all the elements of a vector wh...

fast 12 Jahre vor

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Create an anti-identity matrix
Create an anti-identity matrix of given dimension. Examples n = 2 A = [0 1; 1 0] n = 3 A = [0 0 1; 0 1 0; 1 0 0...

fast 12 Jahre vor

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Does the coin touch the line?
If we throw a coin that has a diameter of d, its center will land in a grid n x m. What is the probability that the coin land...

fast 12 Jahre vor

Problem

Find my secret number
I try to hide a secret number in the workspace amongst others variables. I am paranoid so I change his value and his name a...

fast 12 Jahre vor | 2 | 17 Lösungsvorschläge

Problem

Find indices of diagonal elements
Given a matrix A and a diagonal index d (where 0 indicates the main diagonal and off-diagonals are identified by positive and n...

fast 12 Jahre vor | 2 | 73 Lösungsvorschläge

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Replacing a row
For matrix G=[1 2 3; 4 5 6; 7 8 9] Replace the 2nd row with 8s **remember to create matrix G

fast 12 Jahre vor

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Broken numlock key, oppps !
The numlock key on my computer is pressed and is now broken, so I cant press it to switch off the numlock mode. And hence I am n...

fast 12 Jahre vor

Problem

How to reverse spdiags ?
The spdiags function extracts all nonzero diagonals from the m-by-n matrix A. So if A=[1 2 3;4 5 6;7 8 9], spdiags(A)=[7 4...

fast 12 Jahre vor | 2 | 43 Lösungsvorschläge

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Kurchan 3x3 - Optimal Score
Find an optimal 3x3 Kurchan square, score of 198. A 3x3 Kurchan square has values 1:9.The products of each row, column, diag...

fast 12 Jahre vor

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Kurchan Square - Evaluation Function
Evaluate a Kurchan square. An NxN square with values 1:N^2. Given a square matrix determine the products of each row, column,...

fast 12 Jahre vor

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Pandiagonal Prime Magic Square Verification
Verify if an NxN matrix is a Pandiagonal Prime Magic Square. Required properties: 1) N^2 prime values ( No repeats, 1 ...

fast 12 Jahre vor

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BLOCK x3 (Version 4)
Always in this series ( <http://www.mathworks.com/matlabcentral/cody/problems/2451-block-x3-version-1/ 2451>, <http://www.mathwo...

fast 12 Jahre vor

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Find the Next Legal Move in Reversi
<http://en.wikipedia.org/wiki/Reversi Reversi>, also known as Othello, is a game in which reversible white/black chips are place...

fast 12 Jahre vor

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Sum of series VII
What is the sum of the following sequence: Σ(km^k)/(k+m)! for k=1...n for different n and m?

fast 12 Jahre vor

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Sum of series VI
What is the sum of the following sequence: Σk⋅k! for k=1...n for different n?

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Sum of series V
What is the sum of the following sequence: Σk(k+1) for k=1...n for different n?

fast 12 Jahre vor

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Sum of series IV
What is the sum of the following sequence: Σ(-1)^(k+1) (2k-1)^2 for k=1...n for different n?

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Sum of series III
What is the sum of the following sequence: Σ(2k-1)^3 for k=1...n for different n?

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Sum of series II
What is the sum of the following sequence: Σ(2k-1)^2 for k=1...n for different n?

fast 12 Jahre vor

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Sum of series I
What is the sum of the following sequence: Σ(2k-1) for k=1...n for different n?

fast 12 Jahre vor

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Flipping
Write code that can reverse the vector without using any sort of loop. Example Given the input vector A = [ 1 2 3 4 5...

fast 12 Jahre vor

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Counting down
Create a vector that counts from 450 to 200 in increments of 10.

fast 12 Jahre vor

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Vectors counting by 2
Create a vector numbers from 7 to 15 in increments of 2

fast 12 Jahre vor

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ASCii Code
Using matlab, give the symbol that is associated with ASCii code 122

fast 12 Jahre vor

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ASCii Code
Using Matlab get the ASCii for '?'

fast 12 Jahre vor