# 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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Times 2 - START HERE

Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

2 months ago

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Number Puzzles - 003

Find six non-zero integers a, b, c, d, e, and f which satisfy the following equations: All six integers must be different. Th...

5 months ago

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Number Puzzles - 004

Give an example of three distinct numbers greater than 10 whose both product and sum are palindromes. The answer is not unique a...

5 months ago

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Mean number of letters per word (Easy)

Given a character array, s, representing a sentence, return a, the arithmetic mean of the number of letters per word in the give...

5 months ago

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Draw the symbol '+'

Draw '+' in an x-by-x matrix (where x is odd and x >3) Example: x = 5 y = [0 0 1 0 0 0 0 1 0 0 1 1 1 1 1 0 ...

5 months ago

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Add the number of horizontal and vertical movements to each matrix element

Given n, create a square matrix and with element (1,1) = 1, add 1 to each element for each horitizonal and vertical movement. E...

5 months ago

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Area of a regular hexagon

Given the length of a side of a regular hexagon, return its area rounded to two decimal places.

5 months ago

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Make a checkerboard matrix

Given an integer n, make an n-by-n matrix made up of alternating ones and zeros as shown below. The a(1,1) should be 1. Examp...

5 months ago

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what's my tax amount this year ?

given an annual salary x and a tax rate i calculate the amount that you have to pay.Example x = 70000; i=.10 y_correc...

5 months ago

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Height of a 3D Pyramid

If a pyramid is made with one(1). What will be the height of the pyramid of square shaped base(n*n)? where input is n.

5 months ago

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Pairwise column flip

Given matrix *M_in*, flip every pair of columns. So if *M_in* is 1 2 3 4 1 2 3 4 then *M_out* is 2 1 4 3 2 1 4 3 ...

5 months ago

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Total resistance of a network of resistors in series and parallel

What is the total resistance of a network of resistors in series and in parallel? A matrix R contains the resistances (in Ohm) ...

6 months ago

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Find the summation, mean, median, mode and standard deviation of a given array.

An array is given. Find out the summation, mean, median, mode and standard deviation of a given array. If x=[1,2,2,3,3,3,4,4,4,...

6 months ago

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Total resistance of resistors in parallel

What is the total resistance of a number of resistors in parallel? A vector R contains the resistances (in Ohm) of n resistors,...

6 months ago

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Total resistance of resistors in series

What is the total resistance of a number of resistors in series? A vector R contains the resistances (in Ohm) of n resistors, w...

6 months ago

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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: ...

7 months 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...

7 months 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...

7 months ago

Solved

Find a Prime Number

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

7 months ago

Solved

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...

7 months ago