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チェッカーボードを作ろう
整数 n が与えられた時、以下の様な1と0を含むn×nの行列を作成しましょう。a(1,1) は1にする必要があります。例：入力 n = 5 出力 a が [1 0 1 0 1 0 1 0 1 0 ...

fast 11 Jahre vor

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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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Find the nearest integer
Given a vector of integers and a real number find the closest integer. EX: >> a = [2 4 5 6 8 10]; >> b = 4.6; >> nea...

fast 11 Jahre vor

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Triangle Numbers Below N
This is an offshoot of <http://www.mathworks.com/matlabcentral/cody/problems/5-triangle-numbers Cody Problem 5: Triangle Numbers...

fast 11 Jahre vor

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Is this matrix orthogonal?
Given a square matrix, a, determine whether it is orthogonal. INPUT: a, a n x n matrix OUTPUT: true or false

fast 11 Jahre vor

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Calculate the integral of the polynomial
for e.g. in = [3 2 1] out = [1 1 1 0]

fast 11 Jahre vor

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Double colon operator: Counting down
* Construct a row array countValues from startValue to endValue, elements decremented by -2 Ex: If startValue is 10 and end...

fast 11 Jahre vor

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Create an n-by-n null matrix and fill with ones certain positions
The positions will be indicated by a z-by-2 matrix. Each row in this z-by-2 matrix will have the row and column in which a 1 has...

fast 11 Jahre vor

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Areas
Given certain dimensions determine the area of that shape. If given only one value assume its the radius. Use round(x) to round ...

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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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Remove the two elements next to NaN value
The aim is to *remove the two elements next to NaN values* inside a vector. For example: x = [6 10 5 8 9 NaN 23 9 7 3 21 ...

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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 11 Jahre vor

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Is the Point in a Circle?
Check whether a point or multiple points is/are in a circle centered at point (x0, y0) with radius r. Points = [x, y]; c...

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Is the Point in a Triangle?
Check whether a point or multiple points is/are in a triangle with three corners Points = [x, y]; Triangle = [x1, y1; x...

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Perimeter
Given a sequence of points forming a closed path (first and last points are coincident) return the perimeter value. For example...

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Circumscribed circles
Given the lengths of the 3 sides of a triangle, output the radius of the circumscribed circle. Example: [3 4 5] -> 2.5

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Wilf-Zeilberger pairs
Take as inputs two functions _F_ and _G_, and two scalar values _n_ and _k_. Test whether the functions are candidates to be a W...

fast 11 Jahre vor

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Volume of a Simplex
Return the volume of a <http://en.wikipedia.org/wiki/Simplex regular _n_-simplex> with a unit side length. Results are up to...

fast 11 Jahre vor

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Simple date to serial no. conversion
Convert a date string to a serial date number. For example if you take x='19-May-2001' then the result is 730990 x...

fast 11 Jahre vor

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Book Club
A book club that has _K_ members, as a group, have to read _N_ books. Return how many different ways the members could read the ...

fast 11 Jahre vor

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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....

fast 11 Jahre vor

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Rotate counterclockwise a matrix 90 deg with left-bottom element
Example: Input [ 1 2 3 4 5 6 ] Output [ 3 6 2 5 1 4 ]

fast 11 Jahre vor

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Polybius Square
Given a string, calculate the coordinates. Input will be always in lowercase. If string is a sentence then use 0 (zero) to indic...

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De-dupe
Remove all the redundant elements in a vector, but keep the first occurrence of each value in its original location. So if a =...

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Circular Primes (based on Project Euler, problem 35)
The number, 197, is called a circular prime because all rotations of the digits: 197, 971, and 719, are themselves prime. The...

fast 11 Jahre vor

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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 ...

fast 11 Jahre vor

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Changing a dd/mm/yyyy cell into a yyyymmdd int/double
Hi, i'm pretty to new to Matlab, I believe the title is self-explanatory. If anyone could help me out that would be great.

fast 11 Jahre vor

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make a 10x10 vector of random numbers between 1 and 1000 and convert it into a 10x10 of all zeros
function heck_yes y = randi(10,1000) Converted = zeros(y)

fast 11 Jahre vor