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Quadratic equation

given three inputs (a, b, c) for the equation a*x^2+b*x+c=0; return 1 if the roots are complex (non zero imaginary), and 0 if th...

30일 전

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find subscripts from linear index

a matrix and the linear index of an element is given as input. find the subscripts of that element. if linear index=3 , outp...

약 1달 전

문제

Determine whether a given point is inside or outside a polygon

A closed polygon may be described by an N x 2 array of nodes, where the last node and the first node are the same. Each row of ...

약 1달 전 | 1

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Cantor counting

Find the nth cantor's rational number. the sequence is given below in the link. Sequence: 1/1,1/2,2/1,3/1,2/2,1/3,1/4... ... .....

약 1달 전

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check whether a number is a pentatope number

https://en.wikipedia.org/wiki/Pentatope_number

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문제

Fun with permutations

There are factorial(N) permutations of the numbers from 1 to N. For each of these permutations, we can find the set of indexes j...

약 1달 전 | 0

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remove numbers from a string

check the given string for any numbers.in case one is found,remove it.but the two portions should be separated. if more than one...

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Repeat elements of a vector

Repeat each elements of a given vector according to their values. say x=[1,2,1,3] y=[1,2,2,1,3,3,3]

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Double Factorial

Return double factorial n(n-2)...(5)(3)(1), n>0, odd n!! = n(n-2)...(6)(4)(2), n>0, even 1 ...

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X O X O

On a noughts and crosses board, how many possible unique combinations are there given a square grid of length n? Assumptions/...

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Combinations using Stirling numbers of the second kind

Output the number of ways to distribute n labelled balls among k identical boxes (some of which might be empty). Example: ...

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Takuzu row

Takuzu row is one row in a logic puzzle of a rectangular grid. The rules are as follows: (1) The row is filled with 1s and 0s...

약 2달 전

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Simple Robotics 2 - End effector attitude

Given a structure as input to your function with the following fields: * robot.links(L1,L2,L3) * robot.jointangles(alfa1,alfa2...

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The length of the equal sides of an isoceles triangle is 'a'.For all the possible (integer) values of the remaining side,find the associated angles between the two equal sides.

the remaining side may have many possible values.only assume integer ones for simplicity.

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An n-sided regular polygon is drawn within a circle whose radius is 'r', what will be the area of the polygon?

area of a polygon is p*a/2. where, p is the perimeter and a is the apothem i.e. the normal distance from center to any of the ...

약 2달 전

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Open coded lock.

Guess the <hint://fliplr(anchortext) password> or break the <2314/solutions/new#test_suite_body lock>.

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make histogram

You probably know the function hist(x,n) to get the histogram. Now try to write the function yourself! For the cheaters wanti...

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Check prime numbers

Let x, return 1 if x is a prime number, 0 otherwise e.g x = 7, return y =1; x = 6 return y = 0;

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create a matrix y of size (n+1) whose last column's elements are the summation of the elements of all the other columns and last row's elements are the summation of the elements of all the other rows; where 'n' is the size of the input matrix 'x'.

for example x=[1 2 3;4 5 6;7 8 9] then y=[1 2 3 6; 4 5 6 15; 7 8 9 24; 12 15 18 45]

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D'Hondt Method of Proportional-Representation

The D'Hondt method is a proportional representational method for allocating seats to parties in an election. <https://en.wiki...

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Hamming Weight - Size Scoring

The Hamming Weight, <http://en.wikipedia.org/wiki/Hamming_weight wiki Hamming Weight>, in its most simple form is the number of ...

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Fraction of a fraction of a ...

One sort of brainteaser problem is a math problem wherein you are asked what the given fraction of a fraction of a ... number is...

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Find the nearest prime number

Happy 5th birthday, Cody! Since 5 is a prime number, let's have some fun looking for other prime numbers. Given a positive in...

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Squares in Squares - Concentric Squares

Given a number, n, create an n x n sized matrix with concentric squares of 1s from the outside in. There should be a gap between...

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