Rafael Hernandez-Walls
My interest is everything related to numerical schemes applied to PDE and Oceanography, UABC.
Statistics
CLASIFICACIÓN
651
of 276.293
REPUTACIÓN
100
CONTRIBUCIONES
0 Preguntas
69 Respuestas
ACEPTACIÓN DE RESPUESTAS
0.00%
VOTOS RECIBIDOS
10
CLASIFICACIÓN
3.902 of 18.597
REPUTACIÓN
350
EVALUACIÓN MEDIA
2.70
CONTRIBUCIONES
4 Archivos
DESCARGAS
12
ALL TIME DESCARGAS
3462
CLASIFICACIÓN
68
of 126.016
CONTRIBUCIONES
2 Problemas
1265 Soluciones
PUNTUACIÓN
13.272
NÚMERO DE INSIGNIAS
17
CONTRIBUCIONES
0 Publicaciones
CONTRIBUCIONES
0 Público Canales
EVALUACIÓN MEDIA
CONTRIBUCIONES
0 Temas destacados
MEDIA DE ME GUSTA
MATLAB Central Community 20 Year Anniversary Mini Hack participant badge
Awarded to Rafael Hernandez-Walls on 11 Nov 2021
MATLAB Central Community 20 Year Anniversary Treasure Hunt participant badge
Awarded to Rafael Hernandez-Walls on 15 Sep 2021
10 of your answers have been accepted
Awarded to Rafael Hernandez-Walls on 15 Feb 2022
Contribute at least one answer each month for 6 consecutive months
Awarded to Rafael Hernandez-Walls on 02 Nov 2020
Obtain 50 solvers for a problem you have created
Awarded to Rafael Hernandez-Walls on 29 Jan 2021
Solve a community group
Awarded to Rafael Hernandez-Walls on 25 Dec 2019
Your submissions were downloaded 10 or more times in a month
Awarded to Rafael Hernandez-Walls on 01 Nov 2019
Publish your first submission
Awarded to Rafael Hernandez-Walls on 09 Oct 2019
3 of your answers have been accepted
Awarded to Rafael Hernandez-Walls on 14 Jun 2020
Solve all the problems in Introduction to MATLAB problem group
Awarded to Rafael Hernandez-Walls on 24 Nov 2019
Solve Project Euler problems using Matlab
Awarded to Rafael Hernandez-Walls on 24 Oct 2018
Solve all the problems in Cody Problems in Japanese problem group
Awarded to Rafael Hernandez-Walls on 20 Aug 2018
Content Feed
Resuelto
Molar Air Density from Temperature and Pressure
The molar density of air can be found from the Temperature and Pressure using the ideal gas law. where the Molar density STP ...
5 meses hace
Resuelto
Calculate Wind Chill Factor
The NWS Wind Chill Temperature (WCT) index formula for calculating the dangers from winter winds and freezing temperatures: Cal...
5 meses hace
Resuelto
Air Mass to Star for an Observer at Mean Sea Level
Air mass is a measure of how much atmosphere light from a source above the atmosphere (eg sun, planet, star) has to travel throu...
5 meses hace
Resuelto
Find Air Temperature from Cricket Stridulation Rate
Stridulation is the process that creates a cricket's “chirp” by rubbing their wings or legs. According to the Old Farmer's Alma...
5 meses hace
Resuelto
Construyendo matrices parte 2
Construye la siguiente matriz a partir de otros tres vectores/matrices. [ 1 8 15 3 3 3 3 2 9 16 3 3...
5 meses hace
Resuelto
Sum of series IV
What is the sum of the following sequence: Σ(-1)^(k+1) (2k-1)^2 for k=1...n for different n?
5 meses hace
Resuelto
Back to basics 22 - Rotate a matrix
Covering some basic topics I haven't seen elsewhere on Cody. Rotate the input matrix 90 degrees counterclockwise (e.g. [1 2; ...
6 meses hace
Resuelto
Composite Trapezoidal Rule for Numeric Integration
Use the trapezoidal rule to numerically integrate a function, _f(x)_, passed as the first argument, between upper and lower limi...
7 meses hace
Resuelto
Differential equations I
Given a function handle |f| an initial condition |y0| and a final time |tf|, solve numerically the differential equation dy...
7 meses hace
Resuelto
Weighted Convolution
Given two input vectors x = [x_1, x_2, ..., x_K] and y = [y_1, y_2, ..., y_K] of equal length, compute the weighted convolution ...
11 meses hace
Resuelto
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...
más de 1 año hace
Resuelto
mathematics , probability problem
How many different result can we have, rolling k dice?
más de 1 año hace
Resuelto
MATLAB Basics: Complex Conjugates
For a given complex number, x, return the complex conjugate, y.
más de 1 año hace
Resuelto
MATLAB Basics: Complex Numbers
For a given complex number, x, return the real and imaginary parts as a vector, y = [Real Imaginary].
más de 1 año hace
Resuelto
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: ...
más de 1 año hace
Resuelto
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...
más de 1 año hace
Resuelto
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...
más de 1 año hace
Resuelto
Calculate the answer to life the universe and everything
<https://en.wikipedia.org/wiki/42_(number)>
alrededor de 2 años hace
Resuelto
How many hours are there in a day in Italy?
Remember "European Summer Time"
alrededor de 2 años hace
Resuelto
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...
más de 2 años hace
You can also select a web site from the following list:
Americas
- América Latina (Español)
- Canada (English)
- United States (English)
Europe
- Belgium (English)
- Denmark (English)
- Deutschland (Deutsch)
- España (Español)
- Finland (English)
- France (Français)
- Ireland (English)
- Italia (Italiano)
- Luxembourg (English)
- Netherlands (English)
- Norway (English)
- Österreich (Deutsch)
- Portugal (English)
- Sweden (English)
- Switzerland
- United Kingdom (English)
Asia Pacific
- Australia (English)
- India (English)
- New Zealand (English)
- 中国
- 日本Japanese (日本語)
- 한국Korean (한국어)