Answered
Rewrite for loop with find function
The function find returns the indeces according to the condition. So, in order to diplay the values, you might use the following...

6 months ago | 1

Solved


How to find the position of an element in a vector without using the find function
Write a function posX=findPosition(x,y) where x is a vector and y is the number that you are searching for.

6 months ago

Solved


Determine if input is a perfect number
A <http://en.wikipedia.org/wiki/Perfect_number/ perfect number> occurs whent the sum of all divisors of a positive integer, exce...

6 months ago

Solved


Is it an Armstrong number?
An Armstrong number of three digits is an integer such that the sum of the cubes of its digits is equal to the number itself. Fo...

6 months ago

Solved


First N Perfect Squares
*Description* Return the first N perfect squares *Example* input = 4; output = [ 1 4 9 16 ];

6 months ago

Solved


Project Euler: Problem 1, Multiples of 3 and 5
If we list all the natural numbers below 10 that are multiples of 3 or 5, we get 3, 5, 6 and 9. The sum of these multiples is 23...

6 months ago

Solved


Cell joiner
You are given a cell array of strings and a string delimiter. You need to produce one string which is composed of each string fr...

6 months ago

Solved


Vector creation
Create a vector using square brackets going from 1 to the given value x in steps on 1. Hint: use increment.

6 months ago

Solved


Doubling elements in a vector
Given the vector A, return B in which all numbers in A are doubling. So for: A = [ 1 5 8 ] then B = [ 1 1 5 ...

6 months ago

Solved


Create a vector
Create a vector from 0 to n by intervals of 2.

6 months ago

Solved


Flip the vector from right to left
Flip the vector from right to left. Examples x=[1:5], then y=[5 4 3 2 1] x=[1 4 6], then y=[6 4 1]; Request not ...

6 months ago

Solved


Whether the input is vector?
Given the input x, return 1 if x is vector or else 0.

6 months ago

Solved


Find max
Find the maximum value of a given vector or matrix.

6 months ago

Solved


Get the length of a given vector
Given a vector x, the output y should equal the length of x.

6 months ago

Solved


Inner product of two vectors
Find the inner product of two vectors.

6 months ago

Solved


Arrange Vector in descending order
If x=[0,3,4,2,1] then y=[4,3,2,1,0]

6 months 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...

6 months 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 ...

6 months ago

Answered
Accessing data variables from another function
I did not get the final goal, but I fixed your code. F2([1,1,1 ; 2 2 2 ; 3 3 3]) function [Q,R] = F1(A) Q = 2*A R ...

6 months ago | 1

| accepted

Answered
I need a code to count how many raw in my matrix above zero?
You might use the function find (https://www.mathworks.com/help/matlab/ref/find.html). Check the following code: B = [1,-1; 2,...

6 months ago | 0

Answered
Index exceeds the number of array elements (2)
Hi Ali, Your dsolve function has 4 states variables: dx(1,1), dx(2,1), dx(3,1), and dx(4,1). Therefore you need an initial vari...

6 months ago | 1

Answered
How to define limit of quiver axis?
You could use axis function. For more information check here: https://www.mathworks.com/help/matlab/ref/axis.html See the follo...

6 months ago | 2

| accepted

Solved


Multiply 2 numbers
Very easy, you just have to multiply 2 numbers but you cannot use the following signs (*, /, - ,^) ,mtimes , times, cross, pro...

7 months ago

Solved


Angle between Two Vectors
The dot product relationship, a dot b = | a | | b | cos(theta), can be used to determine the acute angle between vector a and ve...

7 months ago

Solved


Is the Point in a Circle?
Check whether a point or multiple points is/are in a circle centered at point (x0, y0) with radius r. Points = [x, y]; c...

7 months ago

Solved


Calculate the area of a triangle between three points
Calculate the area of a triangle between three points: P1(X1,Y1) P2(X2,Y2) P3(X3,Y3) these three points are the vert...

7 months ago

Solved


Angle between two vectors
You have two vectors , determine the angle between these two vectors For example: u = [0 0 1]; v = [1 0 0]; The a...

7 months ago

Solved


Right and wrong
Given a vector of lengths [a b c], determines whether a triangle with those sides lengths is a right triangle: <http://en.wikipe...

7 months ago

Answered
Using 3x3 matrix to create 21x21 matrix
It is not clear the overlap values. I assumed the following: k33+k11 k33+k12 K33+k13 K33+k23 ..., Until the last is k33+k3...

7 months ago | 1

| accepted

Answered
Apply equation to an array of values producing a new data set
You do not need a door loop. Matlab is built to handle this kind of operation. Check the following: T = 1:1:122736; FcnT...

7 months ago | 1