# Lucas García

### MathWorks

I mainly focus in Machine/Deep Learning, Big Data Analytics and Robotics applications.

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**Content Feed**

Submitted

Face, Age and Emotion Detection

Demo for face, age and emotion detection (all using Deep Learning) and leveraging the capability to import Caffe models in MATLA...

6 months ago | 27 downloads |

Submitted

Example files for "Deep Learning for Computer Vision with MA

Example files for "Deep Learning for Computer Vision with MATLAB" Webinar - July 5, 2016 (Spanish)

6 months ago | 8 downloads |

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.

11 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,...

11 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...

11 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...

11 months 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 = ...

11 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]

11 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.

11 months ago

Defuzzification

If you are using the Fuzzy Inference System editor, you can choose in the main GUI one of the defuzzication methods. The input f...

6 years ago | 0

About random number generators

As you have found out, using |<http://www.mathworks.com/help/matlab/ref/rng.html rng>| is the way to go with the current MATLAB ...

7 years ago | 0

| accepted

Submitted

PID Basics

PID Basics is a nice way to obtain a quick intuition and understanding of PID control.

9 years ago | 7 downloads |

corrcoef - plotregression (which algorithm plotregression use)

|plotregression| actually uses the |regression| function (also from Neural Network Toolbox) to compute the R value. However,...

9 years ago | 1

ODE15S problem with solver

Have you tried with all the different stiff solvers available? |ode15s|, |ode23s|, |ode23t| and |ode23tb|. It could be that the...

9 years ago | 0

| accepted

Solved

Return the 3n+1 sequence for n

A Collatz sequence is the sequence where, for a given number n, the next number in the sequence is either n/2 if the number is e...

9 years ago

Solved

Back and Forth Rows

Given a number n, create an n-by-n matrix in which the integers from 1 to n^2 wind back and forth along the rows as shown in the...

9 years ago

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...

9 years ago

Solved

Fibonacci sequence

Calculate the nth Fibonacci number. Given n, return f where f = fib(n) and f(1) = 1, f(2) = 1, f(3) = 2, ... Examples: Inpu...

9 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...

9 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...

9 years ago

bsxfun in GPU in PCT v5.2

The link you are referring to is actually from the current release, R2012a. bsxfun support for GPUArray data is a new feature in...

9 years ago | 0

| accepted

Solved

Binary numbers

Given a positive, scalar integer n, create a (2^n)-by-n double-precision matrix containing the binary numbers from 0 through 2^n...

9 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...

9 years ago

Solved

Find all elements less than 0 or greater than 10 and replace them with NaN

Given an input vector x, find all elements of x less than 0 or greater than 10 and replace them with NaN. Example: Input ...

9 years ago

Solved

Make a checkerboard matrix

Given an integer n, make an n-by-n matrix made up of alternating ones and zeros as shown below. The a(1,1) should be 1. Example...

9 years ago

Solved

Column Removal

Remove the nth column from input matrix A and return the resulting matrix in output B. So if A = [1 2 3; 4 5 6]; and ...

9 years ago