Gabriel Ruiz-Martinez

Active since 2006

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Interested in water waves, coastal and oceanographic phenomena.

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Submitted

Colebrook-White equation, using Newton-Raphson
The Colebrook-White equation is solved using the iterative method of Newton-Raphson.

2 years ago | 6 downloads |

Submitted

gebcotif2xyz
GEBCO geotiff file data are exported to two xyz files, one of them in geographical coordinates and other in UTM coordinates.

2 years ago | 3 downloads |

Submitted

Conversion from water pressure to depth
Leroy and Parthiot equation is used to the conversion of water pressure to depth. This equation is an alternative to the UNESCO ...

3 years ago | 3 downloads |

Answered
Harmonic Analysis for Tidal time series data
@Shuvashish Roy, you can try with LP-TIDES, this a nice Matlab GUI that uses T-Tide toolbox. Regards

3 years ago | 0

Answered
Shallow Water wave phase speed.
@Jeremiah Thomas, a solution could be this: % Wave period (s) T = 2:15; % Water depths vector (m) d = 1:4000; % Gravit...

3 years ago | 0

Solved

Doubling elements in a vector
Given the vector A, return B in which all numbers in A are doubling. So for: A = [ 1 5 8 ] then B = [ 1 1 5 ...

3 years ago

Solved

Whether the input is vector?
Given the input x, return 1 if x is vector or else 0.

3 years ago

Solved

Inner product of two vectors
Find the inner product of two vectors.

3 years ago

Solved

Vector creation
Create a vector using square brackets going from 1 to the given value x in steps on 1. Hint: use increment.

3 years ago

Solved

Create a vector
Create a vector from 0 to n by intervals of 2.

3 years ago

Solved

Flip the vector from right to left
Flip the vector from right to left. Examples x=[1:5], then y=[5 4 3 2 1] x=[1 4 6], then y=[6 4 1]; Request not ...

3 years ago

Solved

Find max
Find the maximum value of a given vector or matrix.

3 years ago

Solved

Get the length of a given vector
Given a vector x, the output y should equal the length of x.

3 years ago

Solved

Arrange Vector in descending order
If x=[0,3,4,2,1] then y=[4,3,2,1,0]

3 years ago

Solved

Swap the input arguments
Write a two-input, two-output function that swaps its two input arguments. For example: [q,r] = swap(5,10) returns q = ...

3 years ago

Solved

Roll the Dice!
*Description* Return two random integers between 1 and 6, inclusive, to simulate rolling 2 dice. *Example* [x1,x2] =...

3 years ago

Solved

Number of 1s in a binary string
Find the number of 1s in the given binary string. Example. If the input string is '1100101', the output is 4. If the input stri...

3 years ago

Solved

Calculate BMI
Given a matrix |hw| (height and weight) with two columns, calculate BMI using these formulas: * 1 kilogram = 2.2 pounds * 1 ...

3 years ago

Solved

Convert from Fahrenheit to Celsius
Given an input vector |F| containing temperature values in Fahrenheit, return an output vector |C| that contains the values in C...

3 years ago

Solved

Make a random, non-repeating vector.
This is a basic MATLAB operation. It is for instructional purposes. --- If you want to get a random permutation of integer...

3 years ago

Solved

Select every other element of a vector
Write a function which returns every other element of the vector passed in. That is, it returns the all odd-numbered elements, s...

3 years ago

Solved

Swap the first and last columns
Flip the outermost columns of matrix A, so that the first column becomes the last and the last column becomes the first. All oth...

3 years ago

Submitted

Modified Shields diagram and criterion
shieldsmodbonlay(rhom,diam) computes the modified Shields criterion for the initiation of motion of a cohesionless sediment.

3 years ago | 3 downloads |

Answered
Tide analysis and prediction
A little late Nazmul, but I hope this answer can help to other people with the same doubt. All tidal analysis requires two inpu...

3 years ago | 0

| accepted

Answered
What data from mareographs do I need to perform a tide prediction in T-Tide?
Hi Alexandria, It's little late to reply your message, but I hope this message can help to other people with the same doubt. I...

3 years ago | 0

Answered
Math lab tool for calculating of Tide
Hi Indika, if you have a water level record of 12 years, you can use the Rich Pawlowicz's T-Tide Matlab toolbox to analyze your...

3 years ago | 1

| accepted

Answered
Amount of rain and precipitation simulation
In order to give you an idea, you should check the algorithm of: Intensity duration frequency curves or check this book: Arag...

3 years ago | 0

| accepted

Submitted

Exporting HYCOM currents data to txt and mat files
Downloading sea currents components currents of a point dataset from HYCOM dataset, using an OpeNDAP URL.

3 years ago | 4 downloads |

Answered
Downloading HYCOM data using Matlab and OPeNDAP
HI Amitava, thanks for sharing your Powershell script. Recently, I faced off the same problem as you. Using the NCTOOLBOX (Schil...

3 years ago | 0

Submitted

Seawater density from salinity, temperature and pressure
From practical salinity, temperature and pressure values, the seawater density is computed.

4 years ago | 40 downloads |

Gabriel Ruiz-Martinez

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