# Tomoaki Takagi

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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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**Feeds**

Solved

Who is the baby and who is the daddy in this family?

Given an array of numbers that shows the characteristcs of all family members, find who is the baby and who is daddy in this fam...

8 days ago

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Matrix multiplication across rows

Given matrix m, return matrix n such that, rows of n are result of multiplication of the rows of the input matrix Example ...

8 days ago

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Is it an Armstrong number?

An Armstrong number of three digits is an integer such that the sum of the cubes of its digits is equal to the number itself. Fo...

8 days ago

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matlab indian players

answer is one of the indian matlab player(just for fun dont take serious)

8 days ago

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Next Lower Power of B

Given a number _n_ and a base _B_ greater than 1, return the lowest integer power of _B_ that is less than or equal to _n_. E...

8 days ago

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Next Higher Power of B

|Given a number _n_ and a base _B_ greater than 1, return the lowest integer power of _B_ that is greater than or equal to _n_. ...

8 days ago

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mathematics , probability problem

How many different result can we have, rolling k dice?

8 days ago

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Soccer - TOTO

How many different outcomes are there in a soccer-TOTO with n games? For each game there are three results: win - loss - equa...

8 days ago

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Find number of days

The input is two date in string format (dd-mm-yyyy) find out the number of days between these two dates. Example: input: ...

8 days ago

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Back to basics 2 - Function Path

Covering some basic topics I haven't seen elsewhere on Cody. Given a string that is the name of a MATLAB function, return a s...

8 days ago

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Specific toolboxes

Given a string that is the name of a MATLAB toolbox, return true if it is available on the Cody solvers evaluation system, false...

8 days ago

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Back to basics 15 - Benchmark

Covering some basic topics I haven't seen elsewhere on Cody. Return an array of the benchmark values for MATLAB.

8 days ago

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Find Index of maximum Value and maximum Value of a vector

Find the Index of the first occurrence of the maximum value in a vector and also the maximum value in the vector. Example: [...

8 days ago

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Array GCD

* Find Greatest Common Divisor in a given array * Function Template: function ans = arraygcd(a) % a=[45 15 200 ...

8 days ago

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Which quadrant?

Given a complex number, output quadrant 'I' 'II' 'III' or 'IV' | II | I | ...

8 days ago

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Binary

Given a positive, integer n, create a function that returns the respective binary number in the form of a vector. Example: ...

8 days ago

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Sum of diagonals elements of a matrix

Given a matrix, return the sum of all the elements across the diagonals. E.g. A = [1 2 3; 4 5 6; 7 8 9;...

8 days ago

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Are you in XY plane?

Take a point P as an input position Vector (x,y,z). If you are in XY plane, return 1 as an output otherwise return 0. Example...

8 days ago

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Convert a vector into numbers

Suppose a vector x = [ 1 2 4 7] is given. You have to convert this vector into string number y = '1247'. Examples x = [ 1...

8 days ago

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Integer or Float?

Test an input to see whether it is an integer or a floating point number. If it is an integer return 1 for 'true'. Otherwise ret...

8 days ago

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Calculate value of capacitor

Given the value of resistance and time at which capacitor charges to it's 99%. calculate the value of capacitor

8 days ago

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Create incrementing array

Given a and b generate an output matrix as shown in following examples: a=2 b=5 output=[2 20 200 2000 20000] a=4 b...

8 days ago

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Matlab Basics II - Extract last 3 elements of a vector

Let x be a vector of unknown length, we are always interested in the last 3 numbers in the vector, write a function that gives t...

8 days ago

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Matlab Basics II - Intervals

Write a function that takes an interval from a to b, and divides it into 5 parts example: a = 1, b = 2 output = 1 1.25 ...

8 days ago

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Matlab Basics II - 3 Dimensional Arrays

Assume x is a 3D array with n pages, representing students in a class, for each student (page in the array, the 3rd dimension), ...

8 days ago

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Matlab Basics II - Free Fall

An object freely falling from rest under gravity covers a distance x given by: x = 1/2 gt^2 write a function that calculat...

8 days ago

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Print true if

all elements are larger than 5 a=[1 3 5 8 6]; b=[6 6 6 6 6]; function(a) should be false, and function(b) will be tru...

8 days ago

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Basic commands - Least common multiple

Make a function which will return least common multiple of "a" and "b" Example: a=8; b=6; y=24;

8 days ago

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Basics - not so easy division

Please make a function whcih divides x/y, but pay attention for some exceptions with NaN,0,Inf. Sometimes return "ERROR" instead...

8 days ago