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Column norms of a matrix
Given a matrix M, return a vector y such that for each k y(k)=norm(M(:,k)) (y(k) is the Euclidean norm of the k-th col...

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Volume difference between Ellipsoid and Sphere
Given an ellipsoid of semi principal axis (a,b,c) find the volume of the difference between this ellipsoid and the sphere with...

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Back to basics 2 - Function Path
Covering some basic topics I haven't seen elsewhere on Cody. Given a string that is the name of a MATLAB function, return a s...

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Back to basics 3 - Temp Directory
Covering some basic topics I haven't seen elsewhere on Cody. Return a string that is the path to the system's current temp di...

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Back to basics 19 - character types
Covering some basic topics I haven't seen elsewhere on Cody. Return the number of punctuation characters in the input variabl...

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The Goldbach Conjecture, Part 2
The <http://en.wikipedia.org/wiki/Goldbach's_conjecture Goldbach conjecture> asserts that every even integer greater than 2 can ...

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Test if a matrix is symmetric
Write a logical function that returns 1 if the input matrix is symmetric and 0 otherwise.

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Calculate value of capacitor
Given the value of resistance and time at which capacitor charges to it's 99%. calculate the value of capacitor

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Is it column vector?
Is it column vector? Check vector for column vector without using iscolumn function.

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Replace odd number in given matrix by zero
Replace the odd numbers in a given matrix with zero. Example A = [ 17 24 1 8 15 23 5 7 ...

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Average speed for the entire trip
The input is two speeds (for the trip and return trip) and output is average speed. Assume units are consistent, say miles per h...

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Create vector as shown in test cases
Create vector as shown in test cases

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Generate vector according to sign of vector
Generate vector according to sign of vector Example: If A=[-2 0 5] then output must be[-1 0 1] meaning that for negative n...

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Vector Multiplication
Vector Multiplication of three matrix as shown in test cases.

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Related Vectors
I have two vectors A & B. If the values in vector A is zero then the corresponding value in vector B should be zero. Example:...

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All capital?
Are all the letters in the input string capital letters? Examples: 'MNOP' -> 1 'MN0P' -> 0

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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 ...

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Sum the elements in either diagonal of a square matrix
Sum the elements of a square matrix that lie on either the major diagonal or anti-diagonal. (Include all elements that are part ...

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Replace Nonzero Numbers with 1
Given the matrix x, return the matrix y with non zero elements replaced with 1. Example: Input x = [ 1 2 0 0 0 ...

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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)...

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Negative matrix
Change the sign of all elements in given matrix.

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Armstrong Number
Determine whether the given input n-digit number is Armstrong Number or not. Return True if it is an Armstrong Number. An n-D...

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Television Screen Dimensions
Given a width to height ratio of a TV screen given as _w_ and _h_ as well as the diagonal length of the television _l_, return t...

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Narcissistic number ?
Inspired by Problem 2056 created by Ted. In recreational number theory, a narcissistic number is a number that is the sum of ...

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Find the two most distant points
Given a collection of points, return the indices of the rows that contain the two points most distant from one another. The inpu...

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Fill a zeros matrix
The aim is to fill an array of all zeros given a numerical value and the index of row and columns for this value. 3 Inputs: ...

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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 ...

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Divisible by 11
Pursuant to the <http://www.mathworks.com/matlabcentral/cody/problems/42404-divisible-by-2 first problem> in this series, this o...

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Positive Infinity
Round the array a towards positive infinity

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Negative Infinity
Round the given array a towards negative infinity.

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