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Rafael Zanetti


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Last seen: 1 year ago |  Active since 2019

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My name is Rafael and I am here to learn matlab, even so in the future I could help another people to learn just as you have help me.

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Select values from an array to evalaute data training
Hi everyone, I've tried extract values of an array to evaluate a data, for example my vector of datas is: X = [0:0.05:1]'; My...

2 years ago | 1 answer | 0

1

answer

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Optimization for minimize a Weight of a Gear Train by Using GA
Hi everyone, I am trying run the code explained at the article and the functions wich are attached. I wrote the variables, funct...

4 years ago | 0 answers | 0

0

answers

Question


Help to Run Genetic Algorithm
Hi everyone, I am trying run a ga which were given in article that I am read, but the following error appears and I don't know h...

4 years ago | 0 answers | 0

0

answers

Question


How to minimize a nonlinear function?
Hi everyone, I heve tried to solve a nonlinear equation in matlab where x0 = [0;1;2] is the initial value for search So I wro...

4 years ago | 2 answers | 0

2

answers

Question


Solve a variable in equation
Hi everyone, I have an equation (function) wich I need solve the lambda value: f_lambda1 = 101*(1.2-40.40*lambda1).^2 - 200*(1...

4 years ago | 1 answer | 0

1

answer

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How to print status
Hi, I am writing a program that I need the output be print "Success" or "Failure" on a table of 4 columns, my program is that: ...

4 years ago | 2 answers | 0

2

answers

Question


Function of rates in matlab
Hi everyone, I'm not get figure out this function asked in a problem: My function is that: function [rate_of_taxi,total] = t...

4 years ago | 1 answer | 0

1

answer

Question


Matrix Function to Finite Element Method
Hi, I'm trying to create a function with matrix, but a heve not got, the results shall be k1 = [100 -100; -100 100], and my fun...

4 years ago | 1 answer | 0

1

answer

Question


assemble global stiffness matrix
Hello, I'd like how the easier way to assemble 2 matrices, for example, I have the following matrices: k1 = [120 -120;-120 120]...

4 years ago | 1 answer | 0

1

answer

Question


To operate a function in all rows of matrix
How I can repeat a function irrespective a size of matrix? For example, I have a matrix A and I want calculate the difference be...

6 years ago | 1 answer | 0

1

answer