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Matrix Generation.
if input n =1, generate a matrix y = [1]

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Crate a vector of logarithmically spaced
Create a vector of logarithmically spaced from 10^0 to 10^x with n sample Example: if x=4 and n=3 Answer must be=[1 100 10...

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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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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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Leaking?
Graham's law states that the rate of effusion of a gas is inversely proportional to the square root of its molecular weight. A b...

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Frobenius Norm
Write your own version of Frobenius Norm without using the 'norm' function.

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Factorial Numbers
Factorial is multiplication of integers. So factorial of 6 is 720 = 1 * 2 * 3 * 4* 5 *6 Thus 6 factorial = factorial(720)....

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ベクトルのスケーリング
入力したベクトルの大きさを１にしてください。

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Find the logic
There exists one logic in between input and output. Find it (easy math). Example 1: x=13 then y=339; Example 2: x=26...

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Proper Factors
Generate the proper factors of input integer _x_ and return them in ascending order. For more information on proper factors, ref...

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Symmetric matrix
You must create a n-by-n *symmetric* matrix such that A(row,col) = row/col for col >= row. Example if n =3 : output is : ...

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Multiples of a Number in a Given Range
Given an integer factor _f_ and a range defined by _xlow_ and _xhigh_ inclusive, return a vector of the multiples of _f_ that fa...

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commutative?
Given the handle to a binary function that takes two ordinary numbers, test if the function is commutative.

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Perfect Square or not
find Given input x is perfect square or not,if yes then output y=1.else y=0

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Finding peaks
Find the peak values in the signal. The peak value is defined as the local maxima. For example, x= [1 12 3 2 7 0 3 1 19 7]; ...

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Area of a triangle
A triangle is given with base *'b'* ,vertical hight *'h'* . then find it's area.

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Create a random logical vector of N elements of which M are true.
Your task for tomorrow is to create a random binary (logical) vector of N elements of which M are true. For example: ran...

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Powers Of
Fill the vector with powers of 2, so that vector(1) is 2^1, vector(2) is 2^2, etc. Stop with vector(10). Complete the function ...

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Function composition - harder
Write a function that accepts an arbitrary number of function handles f_1, f_2, ..., f_n and returns the composition h. That is,...

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Create an 'arrow-head" matrix
Write a function that when given an odd number, produces an arrow-head function pointing to the right. Examples n = 3 ...

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Rotate input square matrix 90 degrees CCW without rot90
Rotate input matrix (which will be square) 90 degrees counter-clockwise without using rot90,flipud,fliplr, or flipdim (or eval)....

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String substitution, sub problem to cryptoMath
This is a sub problem related to this problem: <http://www.mathworks.com/matlabcentral/cody/problems/621-cryptomath-addition>...

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N-Queens Checker
Picture a chessboard populated with a number of queens (i.e. pieces that can move like a queen in chess). The board is a matrix,...

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find the relation...
if given input is 1, output is 4. if input is 55, output is 3136.

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expand intervals
You're given a row vector of an even number of monotonically increasing integers. Each pair of consecutive integers is the lower...

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Convert from Base 10 to base 5
Convert the input number from base 10 into base 5: for example: if a(in base 10)= 5 then a(in base 5)= 10

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Cull vector elements that contain a specified digit
Given inputs of (1) a row vector and (2) a digit, identify the elements of that vector that contain the digit, remove them, and ...

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letter yes yes & letter no no
Split a string into two strings, first string has all alphabetic letters, next string has all the rest, keep the order please, o...

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Special matrix
Make a square matrix with this shape. For n=4 M = 1 1 0 0 1 0 1 0 0 1 0 ...

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Convert given decimal number to binary number.
Convert given decimal number to binary number. Example x=10, then answer must be 1010.

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