# Arpad Barsi

### TU Budapest

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BSc in surveying, MSc in civil engineering, PhD in earth sciences

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Solved

Volume Pillar

Calculate the volume of a pillar with radius l and heigth ar.

ungefär ett år ago

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radius of a spherical planet

You just measured its surface area, that is the input.

ungefär ett år ago

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Approximation of Pi

Pi (divided by 4) can be approximated by the following infinite series: pi/4 = 1 - 1/3 + 1/5 - 1/7 + ... For a given number of...

ungefär ett år ago

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Pi Estimate 1

Estimate Pi as described in the following link: <http://www.people.virginia.edu/~teh1m/cody/Pi_estimation1.pdf>

ungefär ett år ago

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Perimeter of a semicircle

Given the diameter d, find the perimeter of a semicircle

ungefär ett år ago

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Calculate area of sector

A=function(r,seta) r is radius of sector, seta is angle of sector, and A is its area. Area of sector A is defined as 0.5*(r^2...

ungefär ett år ago

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Given a square and a circle, please decide whether the square covers more area.

You know the side of a square and the diameter of a circle, please decide whether the square covers more area.

ungefär ett år ago

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Index of neighbor pixel with steepest gradient

Unlike in various applications, where the gradient of a two dimensional matrix is calculated in x and y direction, the gradient ...

ungefär 3 år ago

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Create different color vectors.

When producing figures with multiple lines on, you often want the lines to all be visible and different colors. Given the need f...

ungefär 3 år ago

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Create an 8-color version of an image

This problem was inspired by a tweet I saw from @MATLAB regarding <http://www.mathworks.com/matlabcentral/fileexchange/37816-the...

ungefär 3 år ago

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Compute the dilation of a binary image

A basic operation in image analysis is the dilation. Given an image where each pixel is either on or off (black/white, true/fals...

ungefär 3 år ago

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Scoring for oriented dominoes

Given a list of ordered pairs, and the order they should be placed in a line, find the sum of the absolute values of the differe...

ungefär 3 år ago

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Back to basics 21 - Matrix replicating

Covering some basic topics I haven't seen elsewhere on Cody. Given an input matrix, generate an output matrix that consists o...

ungefär 3 år ago

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Back and Forth Rows

Given a number n, create an n-by-n matrix in which the integers from 1 to n^2 wind back and forth along the rows as shown in the...

ungefär 3 år ago

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Make blocks of color

Given a (Nx3) sequence of RGB colors, I want to create a (numRowBlocks x numColBlocks x 3) image comprising (blockSize x blockSi...

ungefär 3 år ago

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Convert RGB triplet to ColorSpec string

This is the inverse to <http://www.mathworks.com/matlabcentral/cody/problems/42612-convert-colorspec-string-to-rgb-triplet this ...

ungefär 3 år ago

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RGB to CMYK

Convert an RGB code to the corresponding CMYK code for printing. The RGB input is a [1×3] double array between 0 and 1. ...

ungefär 3 år ago

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Change a specific color in an image

The ability to change colors can be a useful tool in image processing. Given an m x n x 3 array (much like CData in images), fin...

ungefär 3 år ago

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2D - Mean Filter

Assume you are given an "image" matrix of size NxM. Reduce the image noise by implementing a mean filter window of size 9 (a 3x3...

ungefär 3 år ago

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Sum of the pixel values for the blue color

Calculate the sum of the pixel values for the blue color, with a picture as an input. *NOTE:* The picture will be provided as...

ungefär 3 år ago

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Convert ColorSpec string to RGB triplet

Given a ColorSpec string, either in short or long form, return the corresponding RGB triplet. If the input is not a valid color,...

ungefär 3 år ago

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Convert hex color specification to MATLAB RGB

Here's something that comes up all the time if you deal with web pages. Given a <http://www.w3schools.com/html/html_colors.as...

ungefär 3 år ago

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Calculate the Levenshtein distance between two strings

This problem description is lifted from <http://en.wikipedia.org/wiki/Levenshtein_distance>. The Levenshtein distance betwee...

ungefär 3 år ago

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Given two strings, find the maximum overlap

Given two strings s1 and s2, create a new string s3 which is as short as possible and contains both strings. If s1 = [1 2...

ungefär 3 år ago

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Knight's Tour Checker

Given a matrix a, determine whether or not a legal <http://en.wikipedia.org/wiki/Knight's_tour knight's tour> is present. The kn...

ungefär 3 år ago

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Connect Four Win Checker

<http://en.wikipedia.org/wiki/Connect_Four Connect Four> is a game where you try to get four pieces in a row. For this problem, ...

ungefär 3 år ago

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Get the area codes from a list of phone numbers

Given a string of text with phone numbers in it, return a unique'd cell array of strings that are the area codes. s = '508-6...

ungefär 3 år ago

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Longest Divisor Run

Given the vector a, find the longest run of consecutive numbers that can be evenly divided by the same number d where d > 1. ...

ungefär 3 år ago

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Remove the small words from a list of words.

Your job is to tidy up a list of words that appear in a string. The words are separated by one or more spaces. Remove all words ...

ungefär 3 år ago