# Chul Min Yeum

### University of Waterloo

Assistant Professor, Civil and Environment Engineering, University of Waterloo (https://cviss.net)

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**Content Feed**

Solved

Sudoku square

We have a small Sudoku square, but one number is missing. x = [ 1 5 4 8 6 3 0 9 7 ] Make a function, wher...

1 year ago

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Reindex a vector

You are given two vectors of equal length. Vector N has numeric values (no Inf or NaN) while vector IDX has integers. Place th...

1 year ago

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Mid-term report

You just got your mid-term report, but it's full of ones and twos :(. So before you give it to your parents, you change it, in o...

1 year ago

Solved

Stairs

Make an n by n matrix, where the elements are ones and zeros. In the main diagonal, and under that, there should be only ones (...

1 year ago

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Spot the First Occurrence of 5

This problem series invites you to solve two simple problems related to the integer NUMBER FIVE, in order to celebrate <https://...

1 year ago

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Octoberfest festival

A group of students decided to visit Octoberfest festival. First they ordered one beer, then after half-hour they taken one more...

1 year ago

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Missing five

Convert decimal numbers to a base-9 notation missing the digit *5* <<http://www.alfnie.com/software/missing5.jpg>> Too man...

1 year ago

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I Plead the Fifth

Write a function to provide a yes or no answer to the input string. However, it must plead the 5th amendment (return an empty st...

1 year ago

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The Top 5 Primes

This problem series invites you to solve two simple problems related to the integer NUMBER FIVE, in order to celebrate <https://...

1 year ago

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Breaking Out of the Matrix

Do you want to take the Red Pill, or the Blue Pill? If you take the Blue Pill, you will simply pass along to the next problem...

1 year ago

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Is this is a Tic Tac Toe X Win?

For the game of <https://en.wikipedia.org/wiki/Tic-tac-toe Tic Tac Toe> we will be storing the state of the game in a matrix M. ...

1 year ago

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Square root

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

1 year ago

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Calculate the average value of the elements in the array

Calculate the average value of the elements in the array

1 year ago

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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;...

1 year ago

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the average value of the elements

Calculate the average value of the elements in the array

1 year 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) ...

2 years ago

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Find the average of a random sequance

Write a function that generates random integers within a loop, and calculates the mean of the positive numbers only. At each ...

2 years ago

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How many trades represent all the profit?

Given a list of results from trades made: [1 3 -4 2 -1 2 3] We can add them up to see this series of trades made a profit ...

2 years ago

Solved

Flag largest magnitude swings as they occur

You have a phenomenon that produces strictly positive or negative results. delta = [1 -3 4 2 -1 6 -2 -7]; Marching thr...

2 years ago

Solved

Separate even from odd numbers in a vector - with a loop

*Using a loop*, rearrange a vector of integers such that the odd numbers appear at the beginning, and even numbers at the end. T...

2 years ago