Solved

Finding Perfect Squares
Given a vector of numbers, return true if one of the numbers is a square of one of the other numbers. Otherwise return false. E...

3 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...

3 years ago

Question

Is there any gradient descent method available?
We are working on the optimization of nonconvex energies in mechanics of solid (see the attached picture) resulting from the fin...

3 years ago | 1 answer | 0

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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...

3 years ago

Solved

Interpolator
You have a two vectors, a and b. They are monotonic and the same length. Given a value, va, where va is between a(1) and a(end...

3 years ago

Submitted

Evolutionary model for shape memory alloys
Software for a new article - more details later

Submitted

Fast elastoplastic FEM assembly
Vectorized assembly of FEM matrices and including complete calculations of elastoplasticity benchmarks.

Submitted

Fast FEM assembly: nodal elements
Vectorized assembly of FEM matrices.

Submitted

Fast FEM assembly: edge elements
Vectorized assembly of FEM matrices.

Submitted

Computation of the Friedrichs and Poincare constants in 2D/3D
Computation of Friedrichs and Poincare constants in 2D/3D from generalized eigenvalue problems.

Question

Matlab Exchange - More authors to one contribution
We are three persons in a team finishing up a Matlab package to upload. I already have an account, but my colleagues not. If the...

4 years ago | 2 answers | 1

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Submitted

Error identities for variational problems with obstacles
Calculaton of Error identities for variational problems with obstacles

Submitted

Continuum undergoing combined elasto-plasto-damage transformation.
Time-dependent evolution of the continuum undergoing combined elasto-plasto-damage transformation.

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...

5 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 ...

5 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...

5 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...

5 years 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:...

5 years ago

Submitted

Lagrange polynomial and its subpolynomials
Construction of the Lagrange interpolation polynomial from its definition.

Question

vectorization of anonymous function?
I managed to vectorize the function below using inline command: u_function=inline(vectorize('sin(x*y*z^2)'),'x','y','z') x=[...

5 years ago | 1 answer | 0

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Submitted

Two-phase obstacle problem in 2D and its aposteriori error estimate
Calculation of two-phase obstacle problem in 2D and its a posteriori error estimate

Submitted

Edges generation
Algorithm generates edges of a conforming 2D/3D triangulation.

Submitted

Quadrature of the absolute value of a function
Quadrature of the absolute value of a function

Submitted

Two-phase obstacle problem in 1D and its aposteriori error estimate
Calculation of two-phase obstacle problem and its a posteriori error estimate

fill3 command working strangely?
Additinally, I also notice that replacing both commands fill3(X,Y,Z,Z) by patch(X,Y,Z); result in the same issu...

6 years ago | 0

Question

fill3 command working strangely?
I came accross a difference in the execution of fill3 command in the following code: figure; subplot(1,2,1) X=[0 1 1 0]'...

6 years ago | 2 answers | 0

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Submitted

Obstacle problem in 2D and its aposteriori error estimate
An obstacle problem is solved and the error of the solution is estimated

Submitted

3D Crouzeix-Raviart mortar finite element method
Implementation of 3D Crouzeix-Raviart mortar finite element

Submitted

Double porosity model
Finite element solution of the double porosity model and its a posteriori error estimate