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# Alberto Chavez

##### Last seen: 18 días ago
23 total contributions since 2020

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Yoonir - 01
Find the area of a five-pointed star inscribed in a circle of radius r.

alrededor de 2 meses ago

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Find the numeric mean of the prime numbers in a matrix.
There will always be at least one prime in the matrix. Example: Input in = [ 8 3 5 9 ] Output out is 4...

alrededor de 2 meses ago

Multiple conditional statements with logic
I think you have part of your expressions in the statements section. Maybe this works. function [too_young] = under_age(age, l...

alrededor de 2 meses ago | 0

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Remove all the consonants
Remove all the consonants in the given phrase. Example: Input s1 = 'Jack and Jill went up the hill'; Output s2 is 'a ...

2 meses ago

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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...

2 meses 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...

2 meses ago

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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. Examp...

2 meses ago

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Determine if input is odd
Given the input n, return true if n is odd or false if n is even.

2 meses ago

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Given a and b, return the sum a+b in c.

2 meses ago

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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...

2 meses ago

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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]; ...

2 meses ago

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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...

2 meses ago

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Find the sum of all the numbers of the input vector
Find the sum of all the numbers of the input vector x. Examples: Input x = [1 2 3 5] Output y is 11 Input x ...

2 meses ago

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Make the vector [1 2 3 4 5 6 7 8 9 10]
In MATLAB, you create a vector by enclosing the elements in square brackets like so: x = [1 2 3 4] Commas are optional, s...

2 meses ago

Solved

Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

2 meses ago

Does encoding method matter in Genetic Algorithm with linear+integer constraints, with respect to crossover?
I believe it matters, because it copies hole sections of the chromosomes, it also depends in the locations for the crossovers an...

2 meses ago | 0

Linears equations summation+combination optimization
It is possible that the lack of input arguments comes from: p1=[]; p2=[]; There, you have nothing to optimize, perhaps if you...

2 meses ago | 0

Continuity Constraint in a Optimization Problem
Sometimes it is better to write the functions and contraints by hand using a small scale problem, and then try to write your cod...

2 meses ago | 0

using intlinprog on my desktop. Processing time jumped substantially from 2015a to 2019a. Was there a shift in settings between these versions?
Not only a shift in default settings but also in some values/algorithms for those settings where retired and some where added I ...

2 meses ago | 0

How to fit a parameter-linked two-equations system?
So basically you have a parametric equation and want to solve for "a"? So that you can then find the minimum value of "a" (which...

2 meses ago | 0

how to divide three element array string and assign independent variable matlab?
So it returns a string type matrix?, maybe if you try to convert it to type double you could be able to manipulate it more freel...

2 meses ago | 1

| accepted

Question

intlinprog - Does the order of the variables matter? Does the order of the constraints matter?
Hello everyone, I'm working in an ILP and in general I have 2 variable types, Boolean, and arbitrary integer variables. Because ...

2 meses ago | 0 answers | 1