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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...

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Evil Number
Check if a given natural number is evil or not. Read more at <https://oeis.org/A001969 OEIS>.

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Evened up (or not)
You will be provided with an array or matrix that contains various numbers, in addition to an evening variable, e, set to 1 or 0...

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Matrix Construction I
Given n, construct a matrix as shown in the example below. Example For n=8, the output should look like this: 1 2 3 4 ...

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Increase monotonically
Return true if the elements of the input vector increase monotonically (i.e. each element is larger than the previous). Return f...

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Variable_Addition
be able to add any variable to the number one

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Calculate square and cube of number
Calculate square and cube of number x

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Determine if a row vector has NaN
Determine if a row vector x has NaN

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factorial of a number x
Factorial of a number x

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Create a square matrix of zeros of even order
Create a square matrix of zeros of even order

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Find the sum of all the numbers of the input vector
Find the sum of all the numbers of the input vector x. So if input x is x = [1 2 3 5] then the output y should be 11.

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Find the sum of all the numbers of the input vector
Find the sum of all the numbers of the input vector x. So if input x is x = [1 2 3 5] then the output y should be 11.

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Write a function man that takes a row vector v and returns a matrix H as follows..
Write a function called man that takes a row vector v as an input and returns a matrix H whose first column consist of the eleme...

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Min by mean
Substitute the minimum value in each row of a matrix A by the mean of that row (it should also work if the input is a vector)

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Create a Matrix of Zeros
Given an input x, create a square matrix y of zeros with x rows and x columns.

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Create a Standard Size Vector
Given an input x, create a row vector y from 1 to x with 5 elements.

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Square a Number
Given an input x, return y, which is equal to the square of x.

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Normalize by maximum
Subtract the maximum value in a column from the corresponding columns of a matrix.

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Sum of series of numbers
Find the sum of numbers from 1-50 using for loop.

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Is the light on?
If true , yes; If false , no create a logical vector;

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Reverse a string
Reverse the given string. Example input = 'reverse' output = 'esrever'

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Sum of a vetor
y = vectorsum(x)

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Determine if input is divisible by three.
Given a positive integer, n, determine if n is divisible by 3. If yes, the function should output true. If no, false.

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Risposto
Rotating a 3D image?
You can have a look at the view function. view(az,el) view([x,y,z])

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Make a Palindrome Number
Some numbers like 323 are palindromes. Other numbers like 124 are not. But look what happens when we add that number to a revers...

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Triangle sequence
A sequence of triangles is constructed in the following way: 1) the first triangle is Pythagoras' 3-4-5 triangle 2) the s...

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Find a Pythagorean triple
Given four different positive numbers, a, b, c and d, provided in increasing order: a < b < c < d, find if any three of them com...

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Is my wife right? Now with even more wrong husband
Again, as in "Is my wife right?" ( <http://www.mathworks.com/matlabcentral/cody/problems/149-is-my-wife-right> ), answer 'yes' r...

quasi 12 anni fa

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Side of an equilateral triangle
If an equilateral triangle has area A, then what is the length of each of its sides, x? <<http://upload.wikimedia.org/wikipe...

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Area of an equilateral triangle
Calculate the area of an equilateral triangle of side x. <<http://upload.wikimedia.org/wikipedia/commons/e/e0/Equilateral-tr...

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