# Gabriel Ruiz-Martinez

Interested in water waves, coastal and oceanographic phenomena.

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CONTRIBUTIONS**17** Files

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**Content Feed**

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...

2 days ago | 0

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...

14 days ago | 0

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...

2 months 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 months ago | 3 downloads |

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 months ago | 0

Submitted

Seawater density from salinity, temperature and pressure

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

6 months ago | 11 downloads |

Submitted

Water Salinity from Pressure and Conductivity of the water

A simple script which computes the water salinity from pressure and conductivity of water data.

6 months ago | 5 downloads |

Solved

Finding Perfect Squares

Given a vector of numbers, return true if one of the numbers is a square of one of the other numbers. Otherwise return false. E...

7 months ago

Solved

Check if number exists in vector

Return 1 if number _a_ exists in vector _b_ otherwise return 0. a = 3; b = [1,2,4]; Returns 0. a = 3; b = [1,...

7 months ago

Solved

Getting the indices from a vector

This is a basic MATLAB operation. It is for instructional purposes. --- You may already know how to <http://www.mathworks....

7 months ago

Solved

Generate a vector like 1,2,2,3,3,3,4,4,4,4

Generate a vector like 1,2,2,3,3,3,4,4,4,4 So if n = 3, then return [1 2 2 3 3 3] And if n = 5, then return [1 2 2...

7 months ago

Solved

Sum all integers from 1 to 2^n

Given the number x, y must be the summation of all integers from 1 to 2^x. For instance if x=2 then y must be 1+2+3+4=10.

7 months ago

Solved

Reverse the vector

Reverse the vector elements. Example: Input x = [1,2,3,4,5,6,7,8,9] Output y = [9,8,7,6,5,4,3,2,1]

7 months ago

Solved

Length of the hypotenuse

Given short sides of lengths a and b, calculate the length c of the hypotenuse of the right-angled triangle. <<https://i.imgu...

7 months ago

Solved

Maximum value in a matrix

Find the maximum value in the given matrix. For example, if A = [1 2 3; 4 7 8; 0 9 1]; then the answer is 9.

7 months ago

Solved

Return the first and last character of a string

Return the first and last character of a string, concatenated together. If there is only one character in the string, the functi...

7 months ago

Solved

Magic is simple (for beginners)

Determine for a magic square of order n, the magic sum m. For example m=15 for a magic square of order 3.

7 months ago

Question

How many built-in functions have Matlab?

How many built-in functions have Matlab R2019b, including all the toolboxes?

1 year ago | 0 answers | 0

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answersSolved

calculate PI without using pi function

There are many methods to get the pi(Ratio of circumference to diameter). You should get pi without using the pi function in M...

2 years ago

Solved

Rotate Matrix @180 degree

Rotate Matrix @180 degree Example A=[8 1 6; 3 5 7; 4 9 2], then answer would be [2 9 4;...

3 years ago

Submitted

Sand Sieve Analysis (SANDY)

Script that allows you to know the main parameters of a sand sieve analysis

4 years ago | 10 downloads |

Solved

Pizza!

Given a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.] Non-scor...

5 years ago

Solved

Determine whether a vector is monotonically increasing

Return true if the elements of the input vector increase monotonically (i.e. each element is larger than the previous). Return f...

5 years ago

Solved

Create times-tables

At one time or another, we all had to memorize boring times tables. 5 times 5 is 25. 5 times 6 is 30. 12 times 12 is way more th...

5 years ago

Solved

Remove the vowels

Remove all the vowels in the given phrase. Example: Input s1 = 'Jack and Jill went up the hill' Output s2 is 'Jck nd Jll wn...

5 years ago

Solved

Triangle Numbers

Triangle numbers are the sums of successive integers. So 6 is a triangle number because 6 = 1 + 2 + 3 which can be displa...

5 years ago

Solved

Circle area using pi

Given a circle's radius, compute the circle's area. Use the built-in mathematical constant pi.

5 years ago