# Esen Ozbay

Communications engineer. Aspiring clean code writer.

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Knnsearch: How to output disntace?

If you write [Idx, dist] =knnsearch (nodes,nodes,'K',2); you will obtain the distances mentioned in the documentation.

3 months ago | 1

| accepted

Unexpected, unexplained, difference between Matrix linear index and row and column subscripts

You have forgotten to write 1: in the first line. for i=size(P,1)*size(P,2) must be for i = 1:size(P,1)*size(P,2) You proba...

3 months ago | 1

Solved

Find relatively common elements in matrix rows

You want to find all elements that exist in greater than 50% of the rows in the matrix. For example, given A = 1 2 3 5 ...

4 months ago

How to Cell indexing

If you want, you can access X1 as X1=11; X2=22; u{1}=[X1,X2]; u{1}(1) % this will yield ans = 11; The above notation me...

4 months ago | 0

| accepted

Solved

Finding Perfect Squares

Given a vector of numbers, return true if one of the numbers is a square of one of the numbers. Otherwise return false. Example...

5 months ago

sim command not opening Simulink model but workspace shows output variable ans ?!

Is it possible that you have created a variable or another function with the same name? Try the command which sim to see what ...

5 months ago | 1

Solved

Kaprekar Steps

6174 is the <http://en.wikipedia.org/wiki/6174_%28number%29 Kaprekar constant>. All natural numbers less than 10,000 (except som...

5 months ago

Solved

Encode Roman Numerals

Create a function taking a non-negative integer as its parameter and returning a string containing the Roman Numeral representat...

5 months ago

Solved

Return the 3n+1 sequence for n

A Collatz sequence is the sequence where, for a given number n, the next number in the sequence is either n/2 if the number is e...

5 months ago

Solved

Alphabetize by last name

Given a list of names in a cell array, sort the list by the last name. So if list = {'Barney Google','Snuffy Smith','Dagwood ...

5 months ago

Solved

Remove the polynomials that have positive real elements of their roots.

The characteristic equation for a dynamic system is a polynomial whose roots indicate its behavior. If any of the roots of the p...

5 months ago

How to plot multiple lines with gray color

Replace plot(p) with: plot(XAxis, p, 'Color', [0.5 0.5 0.5]) You can write any number between 0 and 1 instead of 0.5, as long...

5 months ago | 1

what does Validation Patience mean in training Option?

Validation patience is the number of epochs that the algorithm tries to improve the performance before giving up (if the error i...

5 months ago | 1

Solved

Prime factor digits

Consider the following number system. Calculate the prime factorization for each number n, then represent the prime factors in a...

5 months ago

How to reference or filter range of data in table using information from another table?

DesiredData = cpit(startIdx:endIdx, 2); maxData = max(DesiredData); Hope this works! :)

6 months ago | 0

Solved

Find the two-word state names

Given a list of states, remove all the states that have two-word names. If s1 = 'Alabama Montana North Carolina Vermont N...

6 months ago

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Find state names that start with the letter N

Given a list of US states, remove all the states that start with the letter N. If s1 = 'Alabama Montana Nebraska Vermont Ne...

6 months ago

Solved

Find common elements in matrix rows

Given a matrix, find all elements that exist in every row. For example, given A = 1 2 3 5 9 2 5 9 3 2 5 9 ...

6 months ago

Solved

Determine whether a vector is monotonically increasing

Return true if the elements of the input vector increase monotonically (i.e. each element is larger than the previous). Return f...

6 months ago

How to reference or filter range of data in table using information from another table?

Here is my attempt: for episodeIdx = 1:size(inflationepisodes,1) epStart = inflationepisodes(episodeIdx, 1); epEnd ...

6 months ago | 0

| accepted

Solved

Pizza!

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

6 months ago

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Mandelbrot Numbers

The <http://en.wikipedia.org/wiki/Mandelbrot_set Mandelbrot Set> is built around a simple iterative equation. z(1) = c z...

6 months ago

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Make roundn function

Make roundn function using round. x=0.55555 y=function(x,1) y=1 y=function(x,2) y=0.6 y=function(x,3) ...

6 months ago

Solved

Rounding off numbers to n decimals

Inspired by a mistake in one of the problems I created, I created this problem where you have to round off a floating point numb...

6 months ago

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Matlab Basics - Rounding III

Write a script to round a large number to the nearest 10,000 e.g. x = 12,358,466,243 --> y = 12,358,470,000

6 months ago

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Matlab Basics - Rounding II

Write a script to round a variable x to 3 decimal places: e.g. x = 2.3456 --> y = 2.346

6 months ago

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Check that number is whole number

Check that number is whole number Say x=15, then answer is 1. x=15.2 , then answer is 0. http://en.wikipedia.org/wiki/Whole_numb...

6 months ago

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MATLAB Basic: rounding IV

Do rounding towards plus infinity. Example: -8.8, answer -8 +8.1 answer 9 +8.50 answer 9

6 months ago

Solved

MATLAB Basic: rounding III

Do rounding towards minus infinity. Example: -8.8, answer -9 +8.1 answer 8 +8.50 answer 8

6 months ago

Solved

MATLAB Basic: rounding II

Do rounding nearest integer. Example: -8.8, answer -9 +8.1 answer 8 +8.50 answer 9

6 months ago