Assistant Professor at the University of the Philippines - Diliman, Department of Chemical Engineering; Ph.D. in Energy and Power (2020) from Cranfield University, U.K.; Research Interests: process data analytics, process systems engineering, applications of machine learning to chemical and process engineering.

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Calculator spelling - Numbers to Letters

Using the numbers on a calculator, and rotating the display 180 degrees, many words can be spelled. In particular, the following...

27 days ago

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Mo money, mo math #2! (adapted from Prob 9 Cody team)

You have a matrix for which each row is a person and the columns represent the number of quarters, dimes, nickels and pennies th...

27 days ago

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Approximate functions 1

Compute the following sum for any given x and positive integer n. <<https://i.imgur.com/eUwXdSE.gif>> <> Here m! denote...

27 days ago

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Prime number check

One way to see if a number x is prime is to compute the remainders obtained when dividing x by all integers from 2 to √(x). If x...

27 days ago

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Function 1

Compute the value of <<https://i.imgur.com/AxKWLmE.gif>> for any given positive x.

27 days ago

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Sum of terms in a series 1

Given x and n, compute the following sum: |x|+|x|^(1/2)+|x|^(1/3)+|x|^(1/4)+|x|^(1/5) ... + |x|^(1/n) where ||x|| indica...

27 days ago

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Mo money, mo math! (adapted from Prob 9 Cody team)

You have a vector where the elements represent the number of $20 bills, $10 bills, $5 bills, $1 bills, quarters, dimes, nickels,...

27 days ago

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My Problem, Find the square of the horizontal concatenation of the third and fifth elements of a vector.

given the 1x5 vector x, y must be the square of the horizontal concatenation of the third and fifth elements. So, if x = [1 1 1 ...

27 days ago

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Beauty of Parentheses

Given a string consisting of closed parentheses, form a string array in the following way so that the orders of these parenthese...

27 days ago

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Mongean Shuffle

A Mongean shuffle of an n card deck starts with putting the initial deck on the left hand side. * The top card of the deck is...

27 days ago

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Look Up Mapping

Let the input is A = {[] [] [] [1] []}; B = {'A','B','C','D','E'}; Mapped Output = 'D';

28 days ago

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Assignment Problem

Given a matrix where row i corresponds to person i, and column j corresponds to task j and cell (i,j) corresponds to the time ta...

28 days ago

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generate number in particular way

A = [1 5 2 7]; MAX = 10; generate a array Y = [1 2 2 2 2 2 3 3 4 4]; i.e. total eleme...

28 days ago

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Find last non-zero in a given dimension

You are given a logical matrix *BW* _of any dimension_, and a dimension *dim*. You need to find the locations of the last non-ze...

28 days ago

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Check if a rotated array was originally sorted

Suppose a sorted array is rotated at some pivot unknown to you. For example, |[0 1 2 4 5 6 7]| might become |[5 6 7 0 1 2 4]|. ...

28 days ago

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Weave two matrices together to form one matrix

Take the first column from matrix a, then insert the first column from matrix b, and so on. For example: a = [1 2 3 4]; b ...

28 days ago

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S-T-R-E-T-C-H I-T O-U-T

You will be given a row of numbers (x), and a single number (n). Your job is to write a script that will stretch out the row of...

28 days ago

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Sorting integers by their digits (Level 4)

This is the next step up from <http://www.mathworks.com/matlabcentral/cody/problems/42815-sorting-integers-by-their-digits-level...

28 days ago

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Sorting integers by their digits (Level 3)

This is the next step up from <http://www.mathworks.com/matlabcentral/cody/problems/42811-sorting-integers-by-their-digits-level...

28 days ago

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Sorting integers by their digits (Level 2)

This is the next step up from <http://www.mathworks.com/matlabcentral/cody/problems/42809-sorting-integers-by-their-digits Probl...

28 days ago

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Sorting integers by their digits (Level 1)

Given a vector, v, of positive integers, return a vector, w, by sorting v in ascending order, such that primary sorting is done ...

28 days ago

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Maintain shape of logical-index mask

When using logical indexing into an array, MATLAB returns a vector output. For example, if A = magic(3); mask = logi...

28 days ago

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Aufbau principle

Given the order e=[1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, 5s, 4d, 5p, 6s, 4f, 5d, 6p, 7s, 5f, 6d, 7p], find a vector x with these condi...

28 days ago

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Given a number N, find the smallest prime P>N

Given a number N, find the smallest prime P greater than N. For example: If N=10 then P=11. If N=13 then P=17.

28 days ago

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The End of the World

given a date -- represent it in the Maya long count system. <https://en.wikipedia.org/wiki/Maya_calendar> <https://maya.nm...

28 days ago

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Find the day for a date

Today's day and date will be given to you. By utilising that you need to find the day of the old date. (Date will be in DD/MM/YY...

29 days ago

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Friday the 13th

According to superstition, lots of unpleasant stuff happens on Friday the 13th, so you might like to find the next occurence of ...

29 days ago

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Count the days

Count the occurrence of a particular day (e.g. Monday) in a given year.

29 days ago

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Days until next NewYear ball drop

Given a date string in the form 'yyyy-mm-dd' or 'yyyy-mm-dd hh:mm:ss', calculate the number of *days* until the dropping of the ...

29 days ago