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**Content Feed**

Question

better than if else conditions

I would like to give a tag to a number based on in which region it lies. I am currently using an if else condition. Wondering if...

4 years ago | 2 answers | 0

### 2

answersQuestion

How to find mutual arrays position of multiple matrices with different length

I have two matrices and I want the corresponding all indices, not just the first one. Here is the example A = ... ...

4 years ago | 2 answers | 0

### 2

answersSolved

Create times-tables

At one time or another, we all had to memorize boring times tables. 5 times 5 is 25. 5 times 6 is 30. 12 times 12 is way more th...

4 years ago

Solved

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...

4 years ago

Solved

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...

4 years ago

Solved

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...

4 years 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. Examp...

4 years ago

Solved

Find all elements less than 0 or greater than 10 and replace them with NaN

Given an input vector x, find all elements of x less than 0 or greater than 10 and replace them with NaN. Example: Input ...

4 years 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...

4 years 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 ...

4 years ago

Solved

Pizza!

Given a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.] Non-scor...

4 years 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...

4 years ago

Solved

Determine if input is odd

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

4 years 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 ...

4 years 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...

4 years ago

Solving an integral differential equation using BVP4C

integral(x1,t,tend) = x5 x5dot = -x1 % using fundamental theorem of calculus This solves the problem. http://math.st...

5 years ago | 0

| accepted

Question

Solving an integral differential equation using BVP4C

I have a set of differential equations of the form: x1dot = x3; x2dot = x2; x3dot = x1; x4dot = x2...

5 years ago | 1 answer | 0

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answerQuestion

Fsolve convergence when the variables are changing of the order of 1e-3 or less

I am interested in using fsolve to get the initial guess which satisfies a boundary condition in a Boundary Value Problem(BVP). ...

5 years ago | 1 answer | 0

### 1

answerQuestion

Estimate the rotation of central axis of a 3D curve

I have N points in [x,y,z] and this kind of takes a spiral shape. Is it possible to find the central axis of such a spiral. Thi...

6 years ago | 0 answers | 0

### 0

answersQuestion

Boundary value problem in optimization formulation

I have to solve an optimization problem and it has a boundary value problem(BVP) in it. As we know the BVP takes quite a bit of ...

6 years ago | 1 answer | 0

### 1

answerWhy does parpool take so long to start up for the first time in a MATLAB session?

You can refer the answer for a similar question asked in stack exchange. <http://stackoverflow.com/questions/17125785/matlabpoo...

6 years ago | 0

doubt to store a array values in for loop ?

Hi Ravi, If you have a row vector as a = 1:1:10 and you want only some entries as a new vector you can do b = a([1:3:10]) ...

6 years ago | 2

Question

Convergence program stuck at a point.

Hi all, Below is the code when I am trying to get convergence of a function by varying a variable which dictates it. The sum ...

6 years ago | 1 answer | 0

### 1

answerQuestion

Warning message while using camera calibrator

I am trying to calibrate a camera using Matlab Camera Calibrator. After I select the images, I am getting the following warning ...

6 years ago | 1 answer | 1

### 1

answerSolved

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:...

6 years ago

Question

surface area of a 3D surface

I have data for 3D points and I have made a surface using these points. Is there a way to get surface area of this 3D surface. ...

6 years ago | 1 answer | 0