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Vitor Yano


MathWorks MOOC Program

Last seen: 3 Monate vor |  Aktiv seit 2012

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Gelöst


Return unique values without sorting
If the input vector A is [42 1 1], the output value B must be the unique values [42 1] The *values of B are in the s...

fast 12 Jahre vor

Gelöst


Remove DC
Input x is the sampled signal vector, may have both AC and DC components. Output y should not contain any DC component. Examp...

fast 12 Jahre vor

Gelöst


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...

fast 12 Jahre vor

Problem


Uniform binary crossover
Given two binary vectors, return the two children by combining the genes of them using a binary crossover mask. More informat...

fast 12 Jahre vor | 5 | 77 Lösungsvorschläge

Gelöst


Uniform binary crossover
Given two binary vectors, return the two children by combining the genes of them using a binary crossover mask. More informat...

fast 12 Jahre vor

Gelöst


Get the length of a given vector
Given a vector x, the output y should equal the length of x.

etwa 12 Jahre vor

Gelöst


Rotate a Matrix
Input a Matrix x, Output y is the matrix rotating x 90 degrees clockwise

etwa 12 Jahre vor

Gelöst


Determine Whether an array is empty
Input a matrix x, output y is TRUE if x is empty, otherwise FALSE.

etwa 12 Jahre vor

Gelöst


Make one big string out of two smaller strings
If you have two small strings, like 'a' and 'b', return them put together like 'ab'. 'a' and 'b' => 'ab' For extra ...

etwa 12 Jahre vor

Gelöst


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

etwa 12 Jahre vor

Gelöst


Check if sorted
Check if sorted. Example: Input x = [1 2 0] Output y is 0

etwa 12 Jahre vor

Gelöst


Create times-tables
At one time or another, we all had to memorize boring times tables. 5 times 5 is 25. 5 times 6 is 30. 12 times 12 is way more th...

etwa 12 Jahre vor

Gelöst


surrounded matrix
With a given matrix A (size m x n) create a matrix B (size m+2 x n+2) so that the matrix A is surrounded by ones: A = [1 2 ...

etwa 12 Jahre vor

Gelöst


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...

etwa 12 Jahre vor

Gelöst


Flip the main diagonal of a matrix
Given a n x n matrix, M, flip its main diagonal. Example: >> M=magic(5); >> flipDiagonal(M) 9 24 1 ...

etwa 12 Jahre vor

Gelöst


Whether the input is vector?
Given the input x, return 1 if x is vector or else 0.

etwa 12 Jahre vor

Gelöst


Is A the inverse of B?
Given a matrix A and a matrix B, is A the inverse of B? >>A=[2,4;3,5]; >>B=[-2.5,2;1.5,-1]; >>isInverse...

etwa 12 Jahre vor

Gelöst


Pangrams!
A pangram, or holoalphabetic sentence, is a sentence using every letter of the alphabet at least once. Example: Input s ...

etwa 12 Jahre vor

Gelöst


How to find the position of an element in a vector without using the find function
Write a function posX=findPosition(x,y) where x is a vector and y is the number that you are searching for. Examples: fin...

etwa 12 Jahre vor

Gelöst


Convert hex color specification to MATLAB RGB
Here's something that comes up all the time if you deal with web pages. Given a <http://www.w3schools.com/html/html_colors.as...

etwa 12 Jahre vor

Gelöst


Decode a simplified barcode
Given a bar code from this <http://www.mathworks.com/matlabcentral/cody/problems/602-make-a-simplified-bar-code exercise>: Re...

etwa 12 Jahre vor

Gelöst


Number of 1s in a binary string
Find the number of 1s in the given binary string. Example. If the input string is '1100101', the output is 4. If the input stri...

etwa 12 Jahre vor

Gelöst


Reverse the vector
Reverse the vector elements. Example: Input x = [1,2,3,4,5,6,7,8,9] Output y = [9,8,7,6,5,4,3,2,1]

etwa 12 Jahre vor

Gelöst


Find the numeric mean of the prime numbers in a matrix.
There will always be at least one prime in the matrix. Example: Input in = [ 8 3 5 9 ] Output out is 4...

etwa 12 Jahre vor

Gelöst


Project Euler: Problem 1, Multiples of 3 and 5
If we list all the natural numbers below 10 that are multiples of 3 or 5, we get 3, 5, 6 and 9. The sum of these multiples is 23...

etwa 12 Jahre vor

Gelöst


Factorize THIS, buddy
List the prime factors for the input number, in decreasing order. List each factor only once, even if the factorization includes...

etwa 12 Jahre vor

Gelöst


Pizza!
Given a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.] Non-scor...

etwa 12 Jahre vor

Gelöst


The Hitchhiker's Guide to MATLAB
Output logical "true" if the input is the answer to life, the universe and everything. Otherwise, output logical "false".

etwa 12 Jahre vor

Gelöst


Make a simplified barcode
Given an integer to encode, make a barcode using the following encoding scheme: * The bar code is made from the binary versio...

etwa 12 Jahre vor

Gelöst


Retirement savings
At the start of what year will you have reached or exceeded a savings goal? Parameters (all are constant scalars given in a s...

etwa 12 Jahre vor

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