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Check if equal
Return true if all the elements of an nD array are equal, false otherwise.

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Add a row of zeros on top of a matrix
Given a matrix, insert a row of zeros as the top row.

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Remove element(s) from cell array
You can easily remove an element (or a column in any dimension) from a normal matrix, but assigning that value (or range) empty....

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Power of n ?
Determine if _x_ (positive integer) is a power of _n_, return true or false accordingly.

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Another colon problem
This is simple problem based on problems 555, 801, 1118, etc. Create an index vector from two input vectors. Example: ...

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How unique?
Sometimes, when we check unique entries of vector we would like to know how many times each value occurs. Given vector of num...

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Remove the middle element from a vector
Remove the middle element of a vector? *Example:* [1,2,3] should return 2 [1,2,3,4] should return 2 [] should return...

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Find the index of nth maximum of a row vector of real numbers
Given a vector of real numbers x, find the index idx of _n_ th maximum value. If nth maximum occurs more than once, return the i...

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

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Check if integer
Given a vector of elements, determine if each element is an integer and return true or false accordingly.

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Homemade: Control Charts
This problem is a simple version of control charts in statistics. Intput consists from 30 or more observations. * Upper limi...

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is the number happy?
test is a given integer number is Happy of not? answer 1 if yes or 0 is no

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provide the numerical answer to these number questions...
resturn row matrix containing the sorted numbers which answer the following questions: a) what is the first Knuth number to ...

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Who is the baby and who is the daddy in this family?
Given an array of numbers that shows the characteristcs of all family members, find who is the baby and who is daddy in this fam...

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Sum of diagonals elements of a matrix
Given a matrix, return the sum of all the elements across the diagonals. E.g. A = [1 2 3; 4 5 6; 7 8 9;...

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construct matrix with identical rows
Input a row vector such as x=1:10. Now we need to construct a matrix with L rows,of which every row vector is a copy of x. E...

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Let's get back to school: create mixed numbered fraction
A fractional number can be represented as mixed number. A "mixed number" consists of an integer followed by a proper fraction...

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"Find out the best cricket"
This is how I originally read Problem 2013, so let's just go with it. Give me the first and last name of the best cricket, rega...

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Consecutive Powers
Return 2 numbers and 2 powers such that their difference is 1 A 4 element row vector is expected: x where x(1)^x(2) - x(...

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Finding fourier transform of a given vector
Find the fourier transform of a given input vector for ex a=[1 2 3 4] then y=[ 10.0000 + 0.0000i -2.0000 +...

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Half-Swap
Given a vector with an even number of elements, rearrange it so that the elements in its first half are switched with those i...

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Find Factrorial without using built-in function
A number is given, you have to find the factorial of the number without using built-in factroial function. You may use loops....

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persistant sum
There will be 9 tests for this problem. In each test you will be provided with 2 integers n=[n1,n2], where n2 is equal to t...

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Generate this matrix
Generate the following matrix. n = 2; out = [-4 -3 -2 -1 0 -3 -2 -1 0 1 -...

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Reverse Calculator
Use this reverse calculator and give correct output Its simple, In my Reverse calculator if you press 0 it will be considered...

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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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Compute hamming distance between two binary vectors represented using lists of 1-byte numbers
Let v and u be vectors of the same size with 8-bit integers (0-255). We want to compute the number of bits where those vectors d...

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Given a number find two variables
If the input is *x*, find *a* and *b* from the following equation: *x = a*2^b*. Hint: *b* is an integer while *x* and *a* ar...

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A matrix of introverts
You are given a matrix full of numbers who happen to be very shy. Write a MATLAB function that will put a square of zeros aroun...

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A matrix of extroverts
Now that the introverts have had their script, the extroverts spoke up (naturally!) and demanded one as well. You will be given...

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