# Sulaymon Eshkabilov

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research interests: vibrations, optimal control, system modeling and simulation, mechatronics... coding

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Solved

Golomb's self-describing sequence (based on Euler 341)

The Golomb's self-describing sequence {G(n)} is the only nondecreasing sequence of natural numbers such that n appears exactly G...

4 months ago

Solved

MatCAT - Reconstruct X from Its X-rays

Consider a matrix x x = [ 1 2 0 0 5 0 3 0 8 ] If we sum x along the rows we get row_sums = [3 5 11] ...

4 months ago

Solved

Integer sequence - 2 : Kolakoski sequence

Get the n-th term of Kolakoski Sequence.

1 year ago

Solved

"Look and say" sequence

What's the next number in this sequence? * [0] * [1 0] * [1 1 1 0] * [3 1 1 0] * [1 3 2 1 1 0] This a variant on the w...

1 year ago

Solved

Change the sign of even index entries of the reversed vector

change the signs of the even index entries of the reversed vector example 1 vec = [4 -1 -2 9] ans = [9 2 -1 -4] example2...

2 years ago

Solved

Pizza!

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

2 years ago

Solved

Enlarge array

Given an m-by-n numeric array (A) and a 1-by-2 vector (sz) indicating the dimensions [p q] to enlarge each element, return an (m...

2 years ago

Solved

Matrix multiplication across rows

Given matrix m, return matrix n such that, rows of n are result of multiplication of the rows of the input matrix Example ...

2 years ago

Solved

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...

2 years ago

Solved

Rotate Matrix @180 degree

Rotate Matrix @180 degree Example A=[8 1 6; 3 5 7; 4 9 2], then answer would be [2 9 4;...

2 years ago

Solved

Square root

Given x (a matrix), give back another matrix, where all the elements are the square roots of x's elements.

2 years ago

Solved

Calculate the average value of the elements in the array

Calculate the average value of the elements in the array

2 years ago

Solved

the average value of the elements

Calculate the average value of the elements in the array

2 years ago

Solved

Divisible by 2

This is the first problem in a set of "divisible by x" problems. You will be provided a number as a string and the function you ...

2 years ago

Solved

Split a given string from the first instance of a given character

A simple operation to split a given string into two substrings at the point where the desired character is first found. e.g. ...

2 years ago

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most frequent character

Obtain the most frequent character. For example, s='balaram'; output='a'; If there is a tie between letters, return t...

2 years ago

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Concatenate strings

concatenate a variable number of input strings to produce one outputstring

2 years ago

Solved

NO _________ ALLOWED....

So you're given a sentence where if there is a particular word in the sentence then the output is 1, if it is not there then the...

2 years ago

Solved

Divisible by 10

Pursuant to the <http://www.mathworks.com/matlabcentral/cody/problems/42404-divisible-by-2 first problem> in this series, this o...

2 years ago

Solved

Divisible by 5

Pursuant to the <http://www.mathworks.com/matlabcentral/cody/problems/42404-divisible-by-2 first problem> in this series, this o...

2 years ago

Solved

Make a list string

Given a cell string, produce a string separating the items with spaces and commas and with an 'and' preceding the final item, an...

3 years ago

Solved

ABBREVIATION

Abbreviate the given string. Consider Only Capital Letters. EXAMPLE If input is 'Abbreviation of The Given String' then ou...

3 years ago

Solved

How many digits are there?

Input(s) - any string Output(n) - number of digits within string s

3 years ago