Tomoaki Takagi

Last seen: 2 months ago | Active since 2023

Followers: 1 Following: 0

I have a Ph.D. and am currently a corporate AI researcher. I am also a member of the Japanese Society for Evolutionary Computation.

Programming Languages:
MATLAB
Spoken Languages:
Japanese
Pronouns:
He/him
Professional Interests:
Optimization, Genetic Algorithm, Multiobjective Optimization, Estimation, Visualization

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Create a block diagonal matrix
A block diagonal matrix is a square matrix that can be written as A = [a 0 0 0 0 b 0 0 0 0 c 0 ...

4 months ago

Solved

Calendar Matrix
Return a calendar matrix for the given values of month and year. Assume that Sunday is the first day of the week. The resulting ...

4 months ago

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Rainbow matrix
Create a "rainbow matrix" as described in the following examples Input = 3 Output = [ 1 2 3 2 3 2 ...

4 months ago

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Pascal's pyramid
In Pascal's triangle each number is the sum of the two nearest numbers in the line above: 1 1 1 ...

4 months ago

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Triangular matrices in 3D array
Given a 3D numeric array _x_, return an array _y_ of the same size in which all entries to the right of the main diagonal are ze...

4 months ago

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BULLSEYE Part 2: Reference Problem 18 BULLSEYE
Given n (always odd), return output a that has concentric rings of the 1s and 0s around the center point. Examples: Input ...

4 months ago

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ZigZag matrix with reflected format
ZigZag MATRIX with REFLECTED format. We have only input x. We have to create a matrix in the following pattern. input n=5...

4 months ago

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Union Jack Matrix
Create a matrix of odd dimensions that has ones on both diagonals and dividing the matrix into 4 quadrants, resembling a square ...

4 months ago

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Form a square matrix from four square sub-matrices
Create a square matrix, y, from 4 square sub-matrices that will be constructed (x1, x2, x3, x4): y = [x1 x2; x3 x4]; ...

4 months ago

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Remove duplicated vertices
First input V_in is a vertices list (X Y Z coordinates) which may contain duplicata (identical rows). Second input T_in is th...

4 months ago

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List every vertices neighbor indices
Input T is a <https://fr.mathworks.com/help/matlab/ref/triangulation.html triangulation>. The purpose of this function is to ...

4 months ago

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Build edges list
Input T is a triangulation connectivity indices list (triplet list of indices -positive integers-, each index refering to a vert...

4 months ago

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Remove duplicated triangles
Input T is a triangulation (triplet list of indices -positive integers-, each index refering to a vertex number in a correspondi...

4 months ago

Solved

List one vertex neighbors
First input T is a triangulation connectivity indices list (triplet list of indices -positive integers-, each index refering to ...

4 months ago

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Find neighbor triangle indices
First input T is a triangulation (triplet list of indices -positive integers-, each index refering to a vertex number in a corre...

4 months ago

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Find triangles from edge
First input is T, a Triplet list of indices -whom each row actually contains the three indices of a triangle vertices-. size(T) ...

4 months ago

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Find edges from a vertex
First input is T, a triplet list of indices. Second input is i, a single index (positive integer). The goal of this function is ...

4 months ago

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Find a common vertex
First input is T, a triplet list of indices. Second input is i, a single index (positive integer). The goal of this function is ...

4 months ago

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Find a common edge
First input is T, a triplet list of indices. Second input is e = [e1 e2], a row vector, couple of indices (positive distinct int...

4 months ago

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'X'avier
Given a square matrix A of size n, write a function to create a new matrix B where only the elements on the main diagonal and th...

5 months ago

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Unique rows
A matrix is given as the input. Remove any duplicate rows from the matrix. keep the first occurrence.

5 months ago

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Pairs with Given Sum
Given an array of integers and a target sum, return all unique pairs whose sum is equal to the target. The output should be a ma...

5 months ago

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Greater than before
Given an array of integers, write a function that returns elements that are greater than the one before them. For instance, ...

5 months ago

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First Duplicate
Given an array of integers, return the first duplicate — i.e., the element that appears more than once and whose second appearan...

5 months ago

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Last Duplicate
Given an array of integers, find the last duplicate element — that is, the element whose second occurrence appears latest in the...

5 months ago

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Dominant Matrix - 02
It is a follow-up of the problem 55995. There, you found out whether a matrix is diagonally dominant or not. In this problem, y...

5 months ago

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Dominant Matrix - 01
A matrix is said to be diagonally dominant if for every row of the matrix, the magnitude of the diagonal entry in a row is large...

5 months ago

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currency converter
given a rate of exchange calculate the equivalent units of 100 USD

5 months ago

Solved

Distance Travelled by Vehicle

5 months ago

Solved

Find The area of the square
Given that the length of the side of a square is x, find the area.

5 months ago