Community Profile

# Seyedali Mirjalili

### www.alimirjalili.com

58 total contributions since 2013

Professional Interests: Multi-objective optimization, Robust optimization, Swarm intelligence, Computational intelligence

View details...

Contributions in
View by

Solved

Find the largest value in the 3D matrix
Given a 3D matrix A, find the largest value. Example >> A = 1:9; >> A = reshape(A,[3 1 3]); >> islargest(A) a...

15 days ago

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...

15 days 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...

15 days 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...

15 days ago

Solved

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

15 days 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 ...

15 days 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 ...

15 days 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...

15 days 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:...

15 days ago

What are the best free MATLAB resources for image processing?
You can find nice tutorials here: <https://au.mathworks.com/help/images/getting-started-with-image-processing-toolbox.html>

15 days ago | 0

Help needed to decrease computational time by removing for loops
By the way, if you want to check the speed, just write: tic // code fragment for either for loop of vectoriaed version. ...

15 days ago | 0

Help needed to decrease computational time by removing for loops
You can use the concept of vectorization. Here is an example: With for loop: for k = 1 : 10 a(k) = k ^ 2; end ...

15 days ago | 0

I am not sure about the declaration of 4 variables..
In Matlab, you do not declare a variable. However, if you ask how to initialise four variables, here is the code: var1 = 0 ...

15 days ago | 0

How to compare tables/cells/characters?
Does the following help? tf = strcmp(s1,s2) compares s1 and s2 and returns 1 (true) if the two are identical and 0 (false) ot...

15 days ago | 0

Plotting a 3D graph, incorrect solution.
The problem is that after exiting the for loops, x and y are both equal to 100. So, they are scalars and cannot be used in surf....

15 days ago | 0

| accepted

xlswrite too large imput
I had the same issue and managed to fix it. I was trying to create a file that did not exist in the path. So, I created the file...

1 month ago | 0

Submitted

Multi-Objective Multi-Verse Optimization (MOMVO) algorithm
The multi-objective version of the Multi-Verse Optimization Algorithm

Submitted

MOGOA: Multi-Objective Grasshopper Optimization Algorithm
The multi-objective version of the Grasshopper Optimization Algorithm (MOGOA)

Submitted

MSSA: Multi-objective Salp Swarm Algorithm
The multi-objective version of the Salp Swarm Algorithm (SSA)

Submitted

SSA: Salp Swarm Algorithm
SSA is a novel algorithm for solving single-objective optimization problems

I can not create a matrix
Please note that curly brace ({i}) makes a cell array and not a matrix. You have to use square brackets instead: [] So: ...

12 months ago | 0

Submitted

Grasshopper Optimisation Algorithm (GOA)
GOA is a novel meta-heuristic algorithm for global optimisation

I need help writing a program to pick the largest number in a list
Try this: my_max = -inf; for k=1:length(y) % y is your array if my_max < y(k) my_max = y(k); end ...

1 year ago | 0

| accepted

how to plot multiple 3d functions in one graph for x=0,z=0,x=2y,x+2y+z=2
Generally speaking, Matlab overwrites a plot when you draw something. If you with to draw multiple things, try to freeze the plo...

1 year ago | 0

| accepted

Submitted

GSA + Chaotic Gravitational Constant
Improving Gravitational Search Algorithm with chaotic gravitational constant

Submitted

Multi-objective Ant Lion Optimizer (MOALO)
The multi-objective version of the recently proposed Ant Lion Optimizer

Submitted

A new MATLAB optimization toolbox
This toolbox includes all my proposed optimization algorithms (GWO, ALO, MVO, DA, MFO, SCA, and WOA)

Submitted

Multi-Objective Grey Wolf Optimizer (MOGWO)
The Multi-objective version of the recently proposed Grey Wolf Optimizer (GWO).

Submitted

The Whale Optimization Algorithm
WOA is a new algorithm for solving single-objective optimization problems