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Non trivial identities - flipping
Return x by flipping it.

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Non trivial identities - differentiation
Return x by differentiating it.

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angle in regular polygon
Make a function which returns measure of interior angle in x-side regular polygon. x is as input. Please pay attention, that 1 ...

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Create a constant offset.
Add a constant offset to an array. For example: a=[1 3 5 9]; offset=2; y=[3 5 7 11];

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Geometrical meaning of determinant
Given two vectors x,y, in 2D or three vectors x,y,z in 3D space, compute the area (or volume) of the parallelogram they define. ...

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Find the diagonal of the square of side L
You are given a square of side length L, find D the length of its diagonal.

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Area of polygon
Given the vertices in vectors X,Y, return the area of the polygon they define.

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Upper Matrix in LU Decompositon
Get the Upper Matrix of the Matrix Given Please have a pride on not using built-in Matlab functions :)

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Convert decimal to hex as shown in test cases
Convert decimal to hex as shown in test cases.

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Polynomial evaluation
Compute the value of a polynomial of degree n with coeffcients in vector a, at value x. p(x)=a(1)+a(2)x+a(3)x^2+...+a(n+1)x...

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Iterative sum of digits of 2^n number
Given n, calculate the number 2^n (where n>=0) and *iterate* until the sum of the digits is a single-digit number. Example: ...

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Sudoku square
We have a small sudoku square, but we miss one number. x=[ 1 5 4; 8 6 3; 0 9 7]; Make a function, where output is fi...

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Simple polynomial evaluation
Compute the value of a polynomial of degree n with all coefficients '1', at value x. n is always n>=0. p(x)=1+x+x^2+...+x^n...

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Number of primes
Count the number of primes less than 'n'.

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Beat the test suite if you can :)
Test Suites are laid there for clues

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Creating a code via test suite :)
Given the test suites, create a code that would fit them :) *Clue: Pascal's Triangle

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Rotate array 90 degrees
Example, A = [1 2 3 ; 4 5 6 ] B = rotated(A) = [ 3 6; 2 5; 1 4 ]

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Convert a vector to a lower triangular matrix
I now have a row vector and I want to convert it to a lower trilangular matrix. The rows of the lower trilangular matrix have...

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kmph to mph converter
Convert the speed in miles/hour to km/hour.

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What's size of TV?
Many people buy TV. Usually they ask about diagonal. But also important are width and height. Let's assume that all TV have rati...

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Back to Basics - New Data Type in R2016b - convert a char to a string
Convert an char array into a string.

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Euclidean inter-point distance matrix
The Euclidean distance between two points in a p-dimensional space is a really common thing to compute in the field of computati...

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Odd row
Create a row 'y' with odd numbers where the range of numbers is given by 'x' and the space between them by 'm'. The first number...

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Simpsons's rule (but not Homer Simpson)
I wonder what Homer Simpson would have thought of Simpson's rule? Somehow I doubt his thoughts would have included the phrase Ne...

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Sum of digits of powers of 2
Given n, first, calculate the number 2^n. Then, sum the digits that comprise that number. For example: Input: n = 7 2^n = ...

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Find remainder when x is divided by 3
Find remainder when x is divided by 3

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Calculating cost
You sold a Product at $x and gain 10% What was the cost of the product?

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Select every other element of a matrix
Write a function called outMat = odd_idx( myMat ) that takes a matrix, myMat, as input argument and returns a matrix th...

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Vector addition
Given two row vectors, v1 and v2, each representing an integer, such that the vector elements are the digits from left to right,...

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what can you get for exactly amount of money
You go to store, where each product has price. Prices are in vector s= [ 195 125 260 440 395 290] and you have amount of ...

alrededor de 10 años hace