Answered
Minimization of a function with unknown gradient but known sparsity pattern of its hessian
Dear colleague, based on our discussions from yesterday, I implemented a finite difference scheme for a gradient approximation ...
Minimization of a function with unknown gradient but known sparsity pattern of its hessian
Dear colleague, based on our discussions from yesterday, I implemented a finite difference scheme for a gradient approximation ...
7 years ago | 0
Question
Minimization of a function with unknown gradient but known sparsity pattern of its hessian
Dear colleagues, is there a fmincon option to minimize a function without the knowledge of its gradient but providing a sparsit...
7 years ago | 2 answers | 1
2
answersSubmitted
Simulation of von Kármán viscoelastic plates
A quasistatic evolution of viscoelastic von Kármán plates.
7 years ago | 198 downloads |
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Pascal's Triangle
Given an integer n >= 0, generate the length n+1 row vector representing the n-th row of <http://en.wikipedia.org/wiki/Pascals_t...
7 years ago
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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 ...
7 years ago
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Determine if input is odd
Given the input n, return true if n is odd or false if n is even.
7 years ago
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Count ones
Write a program to count number of ones (1s) in an integer variable input. For example: Input x=2200112231 output y=3 I...
7 years ago
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Complex number
For complex number c=a+bi, write code that will add a and b together.
7 years ago
Submitted
Implementation of C1 FEM
Detailed implementation of Bogner-Fox-Schmit elements.
7 years ago | 206 downloads |
Submitted
Hyper elasticity with a non-penetration condition
A 2D FEM solver based on an energy minimisation formulated in C^1 deformation including a new non-penetration term.
7 years ago | 135 downloads |
Submitted
Element-based Solvers
2D Poisson's solver using only local FEM matrices without the global matrix assembly.
7 years ago | 179 downloads |
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...
8 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...
8 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...
8 years ago | 1 answer | 0
1
answerSolved
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...
8 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...
8 years ago
Submitted
Evolutionary model for shape memory alloys
Software for a new article - more details later
8 years ago | 370 downloads |
Submitted
Fast elastoplastic FEM assembly
Vectorized assembly of FEM matrices and including complete calculations of elastoplasticity benchmarks.
8 years ago | 468 downloads |
Submitted
Fast FEM assembly: nodal elements
Vectorized assembly of FEM matrices.
8 years ago | 4988 downloads |
Submitted
Fast FEM assembly: edge elements
Vectorized assembly of FEM matrices.
8 years ago | 2806 downloads |
Submitted
Computation of the Friedrichs and Poincare constants in 2D/3D
Computation of Friedrichs and Poincare constants in 2D/3D from generalized eigenvalue problems.
8 years ago | 1480 downloads |
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...
8 years ago | 2 answers | 1
2
answersSubmitted
Error identities for variational problems with obstacles
Calculaton of Error identities for variational problems with obstacles
9 years ago | 63 downloads |
Submitted
Continuum undergoing combined elasto-plasto-damage transformation.
Time-dependent evolution of the continuum undergoing combined elasto-plasto-damage transformation.
9 years ago | 1164 downloads |
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...
9 years ago
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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 ...
9 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...
9 years ago
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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...
9 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:...
9 years ago
Submitted
Lagrange polynomial and its subpolynomials
Construction of the Lagrange interpolation polynomial from its definition.
9 years ago | 134 downloads |
