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Rafael Hernandez-Walls


Last seen: 19 jours ago Active since 2010

My interest is everything related to numerical schemes applied to PDE and Oceanography, UABC.

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Solved


The Piggy Bank Problem
Given a cylindrical piggy bank with radius g and height y, return the bank's volume. [ g is first input argument.] Bonus though...

3 mois ago

Solved


mathematics , probability problem
How many different result can we have, rolling k dice?

3 mois ago

Solved


MATLAB Basics: Complex Conjugates
For a given complex number, x, return the complex conjugate, y.

3 mois ago

Solved


MATLAB Basics: Complex Numbers
For a given complex number, x, return the real and imaginary parts as a vector, y = [Real Imaginary].

3 mois ago

Solved


Flip coins

3 mois ago

Solved


Normalizing a vector

3 mois ago

Solved


Return fibonacci sequence do not use loop and condition
Calculate the nth Fibonacci number. Given n, return f where f = fib(n) and f(1) = 1, f(2) = 1, f(3) = 2, ... Examples: ...

4 mois ago

Solved


Number of Even Elements in Fibonacci Sequence
Find how many even Fibonacci numbers are available in the first d numbers. Consider the following first 14 numbers 1 1 2...

4 mois ago

Solved


Find the next Fibonacci number
In the sequence of Fibonacci numbers, every number is the sum of the two preceding ones: 1, 1, 2, 3, 5, 8, 13, 21, 34, 55...

4 mois ago

Solved


Mass Conversion 1

5 mois ago

Solved


Mass Conversion 2

11 mois ago

Solved


Calculate the answer to life the universe and everything
<https://en.wikipedia.org/wiki/42_(number)>

11 mois ago

Solved


How many hours are there in a day in Italy?
Remember "European Summer Time"

11 mois ago

Solved


Temperature Conversion 3

11 mois ago

Solved


Temperature Conversion 2

11 mois ago

Solved


Temperature Conversion 1

11 mois ago

Solved


Simpsons's rule (but not Homer Simpson)
I wonder what Homer Simpson would have thought of Simpson's rule? Somehow I doubt his thoughts would have included the phrase Ne...

11 mois ago

Solved


Total energy

11 mois ago

Solved


Potential energy calculation

11 mois ago

Solved


Kinetic energy calculation

11 mois ago

Solved


Laws of motion 7

11 mois ago

Solved


Laws of motion 6

11 mois ago

Solved


Laws of motion 5

11 mois ago

Solved


Laws of motion 4

11 mois ago

Solved


Laws of motion 3

11 mois ago

Solved


Laws of motion 2

11 mois ago

Solved


Laws of motion 1

11 mois ago

Solved


Find the repeating elements and repetitions of a row vector.
So let's say that x is a vector, for example, x = [4, 4, 5, 5, 5, 6, 7, 7,8, 8, 8, 8] Now we want to get the following two ve...

environ un an ago

Solved


Vertical matrix sort
Given a matrix x with n rows and m columns, return a matrix y with 2n rows and m columns, such that every column in x is sorted ...

environ un an ago

Solved


Diagonal Pattern
For a positive integer |n|, return an |nXn| matrix |mat| such that the value of each element in row |i| and column |j| is given ...

environ un an ago

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