# Karl Ezra Pilario

### University of the Philippines - Diliman

Associate Professor, University of the Philippines - Diliman, Department of Chemical Engineering. Research Interests: process data analytics, process systems engineering, machine learning.

**Programming Languages:**

MATLAB

**Spoken Languages:**

English

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Guess the Coefficients!

Given a polynomial _p_ known to have positive integer coefficients, deduce the values of the coefficients. For example: ...

2 days ago

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Summing Rows and Columns

Create a matrix y of size (n+1) whose last column's elements are the summation of the elements of all the other columns and last...

2 days ago

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Draw 'P' !!!

Draw a n by n matrix 'P' using 0s and 1s. (n is odd and greater than 4) if n=5 , then the output will be [1 1 1 1 1 1 0 0 0...

2 days ago

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Find a Prime Number

Find a prime number from a vector Example: [2 51 8 65 19] a = 51

2 days ago

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A sequence of Ones

You are given number(s) with all digits - 1. Your answer will depend on the count of 1 in the given number, for example - x1...

13 days ago

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Flip the diagonal values

Write a program that flip the elements of main diagonal , upper and lower diagonal values of a sqare matrix. For example if a ...

1 month ago

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Mann-Kendall Correlation

Write a function that returns the <http://en.wikipedia.org/wiki/Kendall_tau_rank_correlation_coefficient Mann-Kendall> correlati...

3 months ago

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Draw matrix 'Swiss flag'( Euro 2020)

Draw a x-by-x matrix 'Swiss flag' using '0' and '1'.(x is odd and bigger than 4) Example x=5 ...

5 months ago

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Draw a x-by-x matrix British flag (Euro 2020)

Draw a x-by-x matrix 'British flag' using '0' and '1'.(x is odd and bigger than 4) x = 5 answer = [0 0 1 0 0 ...

5 months ago

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remove numbers from a string

check the given string for any numbers.in case one is found,remove it.but the two portions should be separated. if more than one...

5 months ago

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Draw a x-by-x matrix 'Denmark flag'(Euro(2020)

Draw a x-by-x matrix 'Denmark flag' using '4' and '1'.(x is odd and bigger than 4) Number 4: Caption S.Kjær and number 1: K.S...

5 months ago

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Matrix Indexing

Given a matrix A and scalars r,c,i, find the product of two elements, with the first element located at row r and column c (doub...

5 months ago

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balance vector

Given a non-empty vector x with integer elements. x shall be called balance vector if one can split the elements of x into two g...

5 months ago

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Map all the indices of an Array Indices into a Vector giving Index vs Row and Column

Create an array of the row and column values for the indices of an array. This is typically performed using [r c]=ind2sub(siz...

5 months ago

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Find the missing numbers.

Total *N* numbers are in the series of natural numbers ( *1,2,3,...,N* ). The input is an array (unsorted) of those natural num...

5 months ago

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The other half of the Fibonacci sequence

The <http://mathworld.wolfram.com/FibonacciNumber.html "Fibonacci sequence"> — F = [1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144,...

5 months ago

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The twelve days of Christmas

Traditionally there are twelve days of Christmas to celebrate ("Twelvetide"), typically starting with Christmas Day (25 December...

5 months ago

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short or buy ? take the opportunity

you had already calculated a theoretical stock value, now you checked in bloomberg the quoted price of that stock and you have t...

5 months ago

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Counting Squares

An algorithm starts with a single square and on each of its next iterations adds new squares all around the outside as shown bel...

5 months ago

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Calculate time taken by light to reach earth surface

We know the time(seconds) taken by light to reach surface of earth. What if the distance varies yearly or source of light moves ...

5 months ago

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Say type of roots in quadratic equation

Given the coefficients of a quadratic equation, write a function that gives the output y='RealDifferent' if the roots are real a...

5 months ago

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Alternating 1´s and 0´s in a matrix

Given an odd number n, write a function that creates a matrix y with dimension nxn alternating 1's and 0's, and starting with 1 ...

5 months ago