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Steven


Active since 2011

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Question


Multiobjective genetic algorithm stopping criteria
Hi, I want to optimize an objective function which returns 3 values [y(1), y(2), y(3)] using gamultiobj toolbox. I set up the...

ongeveer 9 jaar ago | 1 answer | 0

1

answer

Question


Compare 2 vectors together
Hi, Let's say we have 2 vectors of different lenght, values (but there's not 2 values identical in the same vector) and not s...

ongeveer 12 jaar ago | 1 answer | 0

1

answer

Question


how to switch the value of a boolean.
Hi, is there any function to do the following : a = true; b = someFunction(a) ==> b = false b = sumeFuncti...

ongeveer 12 jaar ago | 2 answers | 0

2

answers

Solved


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...

meer dan 12 jaar ago

Solved


The Goldbach Conjecture
The <http://en.wikipedia.org/wiki/Goldbach's_conjecture Goldbach conjecture> asserts that every even integer greater than 2 can ...

meer dan 12 jaar ago

Solved


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

meer dan 12 jaar ago

Solved


Too mean-spirited
Find the mean of each consecutive pair of numbers in the input row vector. For example, x=[1 2 3] ----> y = [1.5 2.5] x=[1...

meer dan 12 jaar 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...

meer dan 12 jaar ago

Solved


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 ...

meer dan 12 jaar 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...

meer dan 12 jaar 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 ...

meer dan 12 jaar ago

Solved


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...

meer dan 12 jaar 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:...

meer dan 12 jaar ago

Answered
PI Controller tuning
Any idea folks ?

meer dan 12 jaar ago | 0

Question


PI Controller tuning
Hi, I have a second order Transfert Function that I would like to control with a PI. My problem is how to set the proportiona...

meer dan 12 jaar ago | 2 answers | 0

2

answers

Question


manage time computing
Hi, I would like to manage the computing time of a function. For example : function y = myfun(x) y = something_long_t...

bijna 13 jaar ago | 1 answer | 0

1

answer

Question


how to organize your code in blocks
hi, I wonder if it's possible to regroup (minimize) some parts of your code. Matlab offers this with for loop, but could it be ...

bijna 13 jaar ago | 2 answers | 0

2

answers

Answered
Simulink if/else block
the block I was looking for was index vector

bijna 13 jaar ago | 0

| accepted

Question


vectorization
hi, is there a quick way to change the values of the diagonal of a matrix, instead of for i = 1:length(A) A(i,i) = 0;...

bijna 13 jaar ago | 2 answers | 1

2

answers

Question


How to pick a value according to its probability
Hi, Let's say P = [0.1 0.3 0.4 0.2] X = [1 2 5 9] where P(n) is the probability to select the X(n) element. I wish...

bijna 13 jaar ago | 4 answers | 1

4

answers

Question


Easy question with probability
Hi, Let's say P = [0.1 0.3 0.4 0.2] X = [1 2 3 4] where P(n) is the probability to select the X(n) element. I wish...

bijna 13 jaar ago | 2 answers | 0

2

answers

Answered
Polynomial
f = @(x,y,z)(x+y+z); or f = inline('x+y+z', 'x', 'y', 'z'); or function f = myfun(x,y,z) f = x+y+z; return g...

bijna 13 jaar ago | 1

Answered
Heat transfer
Hi, You should take a look at MLE+. It's a toolbox wich make the connection between Matlab and EnergyPlus. Obviously, you need ...

ongeveer 13 jaar ago | 0

| accepted

Question


Simulink if/else block
Hi, I'm looking for the right way to set a conditional statement in Simulink. That's the pseudo-code I wish to have: if ...

ongeveer 13 jaar ago | 2 answers | 0

2

answers

Answered
TeX (LaTeX math mode) symbols in legends and labels in MATLAB figures
Try with Latex interpreter, something like title(['$ latex $'],'interpreter','latex')

ongeveer 13 jaar ago | 0

Answered
for loop
value = 1:10; skip = [4 6 9]; value(skip) = []; for i = value ... end

ongeveer 13 jaar ago | 1

Answered
for loop
one way could be to specify manually the values: for i = [1 2 3 5 7 8 10] ... end

ongeveer 13 jaar ago | 1

Question


plot different color
Hi, Let's say I have x = 1:100; y = sin(x); I wish to plot it in blue but if y is superior at 0.5, I want that the plot chang...

ongeveer 13 jaar ago | 2 answers | 1

2

answers

Question


simple operations
Hi, I'm seeking the way to erase repeated value into vector, like this: a = [0 0 1 2 2 2 7]; b = something(a); b = [0 1 2...

ongeveer 13 jaar ago | 1 answer | 0

1

answer

Answered
close terminal window
I got it, I thought matlab could do it by itself, but instead I modify the batch file of the program.

ongeveer 13 jaar ago | 0

| accepted

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