# Ramon Villamangca

Learner and Math Enthusiast

**Programming Languages:**

C++, C, Javascript, MATLAB, Assembly

**Spoken Languages:**

English

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**Content Feed**

Solved

Time reverse indices

Time reverse the index values as follows IndexIn = [7 1 0] IndexOut = [7 6 0] Note that the indices are zero based and so...

6 hours ago

Solved

Combine complex conjugates first when computing the product of vector

Analytically, the product of complex conjugates yields a real result. When numerically computing the product of a vector contai...

9 hours ago

Solved

User defined nextpow function

Create a function which will take 2 arguments as n and x, and return y, where, n^y >= abs(x). [ Similar to builtin "nextpow2" fu...

19 hours ago

Solved

Max Change in Consecutive Elements

If an array is given as input then find the index of consecutive elements that represent maximum change. Example: Input ...

19 hours ago

Problem

Easy Sequences 66: Fractional Part of Sum of Consecutive Powers over a Prime

Given three postive integers, , and , create the function , defined as follows: Where is the th prime and the s...

1 day ago | 1 | 1 solver

Solved

Sum of two number using (regexp, varargin) comand?

Sum two number a &b and get there result in c using the rexp and varargin comand.

2 days ago

Problem

Easy Sequences 65: Fractional Part of Square Roots

The fractional part function of a positive real number , denoted as , is defined as: , where , is the 'floor' of . Thus, , and ...

2 days ago | 0 | 0 solvers

Solved

Negation the hard way

Write a function that has the following property: f(f(x)) = -x for any numeric array x. Note that there is no restriction on ...

3 days ago

Solved

Four quadrant inverse tangent function.

Create a function that returns an array P the same size as X and Y containing the element-by-element, four-quadrant inverse tang...

3 days ago

Solved

String Delimination and Outputting

In this problem, take an incoming string and deliminate the string based on spaces. Output the first string in between the space...

3 days ago

Solved

Matrix Generation from Vector Multiplication

Output the matrix generated from multiplying two vectors together

3 days ago

Solved

Calculate the values of a polynomial.

Calculate the values of a polynomial.Input parameter p - vector of polynomial coefficients, x - matrix of the argument values. ...

3 days ago

Solved

Find index of a string in a cell array

Write a function that finds the index at which the cell array of strings C contains the exact string S. So if C = {'twe...

3 days ago

Solved

Vector indexing: lower than mean

Find all values in a vector lower than the mean of the vector

3 days ago

Solved

Back to basics 24 - Symbolic variables

Covering some basic topics I haven't seen elsewhere on Cody. Given a string algebraic expression, return the symbolic variables...

3 days ago

Solved

Count photos

Given n people, everyone must have pictures taken with everyone, each photo includes only two persons, please count the total nu...

3 days ago

Solved

An n-sided regular polygon is drawn within a circle whose radius is 'r', what will be the area of the polygon?

area of a polygon is p*a/2. where, p is the perimeter and a is the apothem i.e. the normal distance from center to any of the si...

3 days ago

Solved

Calculate feeling temperature before climbing a mountain

I sometimes climb a mountain. As is well known, when the altitude becomes 100 (m) higher, the temperature lowers by 0.6 degrees...

3 days ago

Solved

List the dopey numbers

If vile numbers have binary representations that end with an even number of zeros (even vile), then numbers with binary represe...

3 days ago

Problem

Easy Sequences 64: Base-14 Arithmetic Function

For an integer , the base-14 arithmetic function, , is defined as follows: Convert to base-14, using the letters '' for digits...

4 days ago | 0 | 0 solvers

Solved

List the vile numbers

Evil numbers, the subject of Cody Problem 2733 have an even number of ones in their binary representations, whereas odious numbe...

4 days ago

Solved

Find a Prime Number

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

4 days ago