已解决

Replace secondary diagonal elements of a square array
Replace all the secondary diagonal elements of the square array A with the number n Example: A = [1 2 3 4 5 6 ...

7 years 前

已解决

Sum of combinations
Input: *X = 40*, *Y = [40 20 10 4]* Output: *Z = [1 0 0 0; 0 2 0 0; 0 1 2 0; 0 1 1 3; 0 1 0 5; 0 0 4 0; 0 0 3 3; 0 0 2 5; 0 ...

7 years 前

问题

Sum of combinations
Input: *X = 40*, *Y = [40 20 10 4]* Output: *Z = [1 0 0 0; 0 2 0 0; 0 1 2 0; 0 1 1 3; 0 1 0 5; 0 0 4 0; 0 0 3 3; 0 0 2 5; 0 ...

7 years 前 | 1 | 16 个解题者

已解决

Determine whether the number is multiple of 3 or not
Let a=6 and as 6 = 2*3 which means 6 is multiple of 3; return true if a is multiple of 3,otherwise false.

7 years 前

已解决

number of groups
In a classroom, *n* students work on a special project and the other students work in groups of five. If there are 18 students i...

7 years 前

已解决

Area of a Square
Inside a square is a circle with radius r. What is the area of the square?

7 years 前

已解决

Remove any row in which a NaN appears
Given the matrix A, return B in which all the rows that have one or more <http://www.mathworks.com/help/techdoc/ref/nan.html NaN...

7 years 前

已解决

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...

7 years 前

已解决

Swap the first and last columns
Flip the outermost columns of matrix A, so that the first column becomes the last and the last column becomes the first. All oth...

7 years 前

已解决

Determinants
Given a square matrix(A), find the determinant(d). For example: A = [1,3;4,5] d = 1*5-4*3 = -7

7 years 前

已解决

Find the minimal value in N*N Matrix
Suppose that we have N by N matrix, we try to find the minimal value in that matrix. examples: Input A=[1 2 3 5 6;52 58 56 45...

7 years 前

已解决

Is matlab fun?
Returns 'yes' no matter the input.

7 years 前

已提交

Represented a positive integer number as a sum of multiple positive integer numbers.
A positive integer number N is represented as a sum of K positive integer numbers.

8 years 前 | 1 次下载 |

提问

Which method is faster?
1) a(1,2).last_index=a(1,2).last_index+1; a(1,2).multiple_vars(a(1,2).last_index) = value1; 2) a(1,2).multiple_v...

8 years 前 | 1 个回答 | 0

1

个回答

已解决

create a square matrix
create a [n*n] matrix. example: mat(4)= [ 1 4 9 16 4 4 9 16 9 9 ...

8 years 前

已解决

Circle area using pi
Given a circle's radius, compute the circle's area. Use the built-in mathematical constant pi.

8 years 前

提问

How to draw special figures like this:
<<http://www.teach-ict.com/gcse_computing/ocr/213_software/utilities/miniweb/images/harddisk.jpg>> Suppose i have 3(N) boolea...

8 years 前 | 1 个回答 | 0

1

个回答

已回答
Can anyone help me with the PID tuning using #Particle Swarm Optomization for Load Frequency Control of 3 area system??
start with <http://www.mathworks.com/matlabcentral/fileexchange/43541-particle-swarm-optimization--pso- THIS>

8 years 前 | 0

已回答
I am in the need of your help regarding implementation of PSO MATLAB code for a two area interconnected power system for LOAD FREQUENCY CONTROL.
start with <http://www.mathworks.com/matlabcentral/fileexchange/43541-particle-swarm-optimization--pso- THIS>

8 years 前 | 0

已回答
I am working on control of nonlinear inverted pendulum using PID and LQR.Now i want to apply PSO on PID .How PSO toolbox can use in this problem or if anybody have coding please answer
start with <http://www.mathworks.com/matlabcentral/fileexchange/43541-particle-swarm-optimization--pso- here>

8 years 前 | 0

已解决

Replace values out of an interval with the lower or upper values
For a vector or matrix X and an interval [n1,n2], the function replace every element of x inferior to n1 by n1, and every elemen...

8 years 前

提问

strfind first occurrence.
http://in.mathworks.com/help/matlab/ref/strfind.html#btvz00e-2_1 str = 'Find the starting indices of a pattern in a character...

8 years 前 | 1 个回答 | 1

1

个回答

已解决

Crunch that matrix!
You are given an M x N matrix. Write a script that will compress this matrix into an M x (N/3) matrix, where each of the terms ...

8 years 前

已解决

Determine whether a vector is monotonically increasing
Return true if the elements of the input vector increase monotonically (i.e. each element is larger than the previous). Return f...

8 years 前

问题

generate number in particular way
A = [1 5 2 7]; MAX = 10; generate a array Y = [1 2 2 2 2 2 3 3 4 4]; i.e. total eleme...

8 years 前 | 1 | 106 个解题者

问题

Detect pair of equal values in a Matrix
A 2D matrix of 2 rows and N columns with random integer numbers. A = [3 1 2 4 6 6 7; 7 3 2 1 5 2 4] ...

8 years 前 | 2 | 68 个解题者

提问

How many times this for loop will execute
count =0; for i=1:5 count = count +1; if true i=i+1; end end I want to skip som...

8 years 前 | 1 个回答 | 0

1

个回答

已解决

Eliminate Outliers Using Interquartile Range
Given a vector with your "data" find the outliers and remove them. To determine whether data contains an outlier: # Identi...

9 years 前

已解决

Give prime Numbers upto n
You are given a input number x; print all the prime numbers less than equal to x.

9 years 前

已解决

Repeat string n times - 2
This is the two variable version of <http://www.mathworks.com/matlabcentral/cody/problems/42482-repeat-string-n-times Repeat str...

9 years 前