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Doubling elements in a vector
Given the vector A, return B in which all numbers in A are doubling. So for: A = [ 1 5 8 ] then B = [ 1 1 5 ...

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Reverse digits of a number
Reverse digits of a number. For example, return *321* for the input *123* . The left-hand zeros can be discarded. For exam...

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Convert decimal to hex as shown in test cases
Convert decimal to hex as shown in test cases.

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Remove all the columns contains only zero
Remove the column from the matrix which has only zeros . Refer the Example below a= 1 0 3 0 23 0 56 0 1 ...

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Rotate array 90 degrees
Rotate the given matrix by 90 degrees. Example, A = [1 2 3 ; 4 5 6 ] B = rotated(A) = [ 3 6; 2 5; 1 4 ]

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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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Sort the vector with the given index
Given x = [1 2 4 8 17] and t = [1 3 2 5 4] then y = [1 4 2 17 8].

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Sort complex numbers into complex conjugate pairs
Sort complex numbers into complex conjugate pairs. Example: Input x = [3-6i -1-4i -1+4i 3+6i] Sorted output = [-1 - ...

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Tiling a matrix
Given a matrix and a number of columns, replicate matrix in a single row

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Find out value of sine given by degree.
Find out value of sine given by degree. If theta=30, it's value must be 0.5.

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Remove entire row and column in the matrix containing the input values
Remove the entire row and column from the matrix containing specific values. The specified value can be a scalar or a vector. Fo...

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Don't Try, give up and return NaN.
This is another version of <http://www.mathworks.com/matlabcentral/cody/problems/3107-try-and-catch-simple-example problem 3107....

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union without repitition
Let a = [9 9 9 9 9 9 8 8 8 8 7 7 7 6 6 6 5 5 4 2 1] b = [1 1 1 3 3 3 3 3 4 4 4 4 4 10 10 10] Output should be [9 8...

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Determine the Anti-diagonal of a Magic Square
Determine the anti-diagonal (crossing from top right to lower left) of a magic square of size n. Examples If n = 3 y =...

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Try and Catch Simple Example
Try and Catch Simple Example <http://in.mathworks.com/help/matlab/ref/try.html Example> Vector x=[1 4 6 8 10]; Create...

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Add two hex numbers
Add two hex numbers

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Find difference of two set as per example
Find difference of two set as per example Say x=[1:5] and y=[2:6] then, set_diff(x,y) should give output[1] and set_diff(y...

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Decide whether determinant is zero.
Given a 3 x 3 matrix, find the determinant. Let y = true if the determinant is zero, and let y = false if the determinant is no...

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Change the first and last diagonal element of the identity matrix to zero
Starting with the identity matrix, change first and last diagonal element to zero. Example If n=5 A = 0 0 ...

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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...

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Find Out sum of principal diagonal element of given matrix
Find out sum of principal diagonal element of given matrix If A=[1 0 0; 0 1 0;0 0 1], then answer must be 3.

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Check that number is whole number
Check that number is whole number Say x=15, then answer is 1. x=15.2 , then answer is 0. <http://en.wikipedia.org/wiki/Whole...

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Performance - summation
Given a vector of natural numbers x = [1,2,3,...,N] compute the sum of its elements by not stressing the machine too much...

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Sum all integers from 1 to 2^x
Given a number x, your function must return the summation of all integers from 1 to 2^x.

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Sum of the Multiplication of Vectors
Given the vectors x and y as input, multiply the vectors and return the summation of its elements. Example: x = [1 2 ...

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Vector creation
Create a vector using square brackets going from 1 to the given value x in steps on 1. Hint: use increment.

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Summation of array
Given an array, Find the sum of all of the elements in it Examples: Input x = [1 2 3 5; 4 5 6 7]; Output y is 33

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Modify an array's elements
Write a for loop that iterates from 1 to numberSamples to double any element's value in dataSamples that is less than minValue. ...

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Sum function: Counting cookies
Row array troopCookieSales contains the number of boxes of cookies sold by each troop member. Assign totalSales with the sum of ...

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Compute change
A cashier distributes change using the maximum number of five dollar bills, followed by one dollar bills. Given amountToChange, ...

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