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Positive Definiteness of a Matrix

Determine if input matrix is positive definite or not.

9 jours ago

Solved

Kolakoski Sequence

This is a modified version of the kolakoski sequence. Refer to the problem <https://www.mathworks.com/matlabcentral/cody/p...

11 jours ago

Solved

Fangs of pseudo-vampire number

given a number, find all the fangs of that number. A pseudo-vampire number can have multiple of fangs. The output should be a...

15 jours ago

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Find index of non empty cell array

This question aims to understand the characteristics of MATLAB programs. Educational problem. Please find empty index of cell...

21 jours ago

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Pseudo-vampire number

refer to <https://en.wikipedia.org/wiki/Vampire_number> Given a number x, determine whether it is a pseudo-vampire number. ...

21 jours ago

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How many ways?

Create a program to determine in how many ways can a regular n-gon be divided into n-2 triangles?

22 jours ago

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MinMax

* x=[2 4 3 1 6 4 6] * output , y=[1 6 2 4 3] here,y(1) is the minimum of x, y(2) is the maximum of x, y(3) is the 2nd mini...

22 jours ago

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Combinatorics - 01

* Input=[x,n] * where x is an array of numbers(or strings) and n is a +ve number. for example, x=[1,2] and n=6. The out...

22 jours ago

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Ugly numbers - 03

For this case, a number is defined ugly if it has prime factors consisting of only elements of x. Find the nth ugly number. ...

22 jours ago

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Ugly numbers - 02

Ugly numbers are those whose prime factors are 2, 3 or 5. find the nth ugly number. n.b. unlike the previous problem,trivi...

22 jours ago

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Ugly numbers - 01

Ugly numbers are those whose prime factors are 2, 3 or 5. find the nth ugly number.

22 jours ago

Solved

La derivada numérica

El concepto de pendiente o inclinación de una función recta es muy intuitivo para cualquier persona. Desde el punto de vista mat...

26 jours ago

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Cryptography with A Square Matrix : Decoding

Previous Problem: <https://www.mathworks.com/matlabcentral/cody/problems/45279-cryptography-with-a-square-matrix-encoding Crypto...

26 jours ago

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Cryptography with A Square Matrix : Encoding

Matrix inverse operation can be used to encode or decode of a message. For example text = 'matlab & cody'. numeric e...

26 jours ago

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Orthogonal Circles

Check whether two given circles are orthogonal or not. Two circles are orthogonal if they create a right angle at their inter...

28 jours ago

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Orthogonal lines

Check whether two given lines are orthogonal or not. Two lines are orthogonal if they create a right angle at their intersect...

28 jours ago

Solved

No of squares in a grid

given a m*n grid calculate the no of possible squares & rectangles on that grid. output: y=[no of rectangles , no of sqa...

28 jours ago

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Find the centroid of triangle

Imagine that you want to calculate the *centroid* of some _triangles_ given in matrix form. First the coordinates of the vertice...

environ un mois ago

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Calculate triangle area

Imagine that you want to calculate the areas of some triangles given in matrix form. First the coordinates of the vertices of th...

environ un mois ago

Solved

Game of life - 02

refer to <https://en.wikipedia.org/wiki/Conway's_Game_of_Life> refer to <https://www.mathworks.com/matlabcentral/cody/probl...

environ un mois ago

Solved

Game of life - 01

Refer to <https://en.wikipedia.org/wiki/Conway's_Game_of_Life> given a set of cells (the initial state) represented by 1(l...

environ un mois ago

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Zero

given an integer a, find the smallest possible integer b(b>0) such that their bitwise logical AND is zero. * if a=11(1011) t...

environ un mois ago

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Subdivide the Segment

Two points, P1 and P2, with integer x-y coordinates are given. These uniquely determine a third point, P0, on the extended line...

environ un mois ago

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Be happy

check whether the given number is happy in b-base. * A happy number can be defined as a number which will yield 1 when it is ...

environ un mois ago

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Remove duplicated vertices

First input V_in is a vertices list (X Y Z coordinates) which may contain duplicata (identical rows). Second input T_in is th...

environ un mois ago

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Restricted Addition v4

This problem is <https://www.mathworks.com/matlabcentral/cody/problems/45264-restricted-addition-v3 Restricted Addition v3> with...

environ un mois ago

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Roots of quadratic equation

Given a quadratic equation ax^2 + bx + c = 0, write a function to return its roots.

environ un mois ago

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Restricted Addition v1

Add two numbers without use of common arithmetic operations. Unfortunately, in order to enforce this restriction, other restrict...

environ un mois ago

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Restricted Addition v3

This problem is <https://www.mathworks.com/matlabcentral/cody/problems/45258-restricted-addition-v2 Restricted Addition v2> with...

environ un mois ago

Solved

Query every vertices neighbor indices

Input T is a <https://fr.mathworks.com/help/matlab/ref/triangulation.html triangulation>. The purpose of this function is to ...

environ un mois ago