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Question

Add a progress bar to nonlinear solver

Hi, All I am using matlab nonlinear solver 'fminunc' to solve one pretty big nonlinear program. The whole solving progress ta...

5 years ago | 1 answer | 0

### 1

answerQuestion

optimization problem with 'fminunc' solver for varying size variables?

Hi, All. I have one objective function that I would like to minimize with a large set of variables (well, not that large about 1...

5 years ago | 1 answer | 0

### 1

answerSolved

Back to basics 26 - Keywords

Covering some basic topics I haven't seen elsewhere on Cody. Return a cell array of strings of all MATLAB keywords.

6 years ago

Solved

Distance walked 3D

suppose you go from x-y-z coordinates [3,4,2] to [0,0,2] to [0,1,2] to [1,1,2], to [1,1,20] then you walked 25 units of distance...

6 years ago

Solved

Back to basics 17 - white space

Covering some basic topics I haven't seen elsewhere on Cody. Remove the trailing white spaces from the input variable

6 years ago

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Sorting

Assume that x is an n-by-2 matrix. The aim is to return the first column of x, but sorted according to the second column. Exa...

6 years ago

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Back to basics 4 - Search Path

Covering some basic topics I haven't seen elsewhere on Cody. Return a string that is the user's portion of the current search...

6 years ago

Solved

Back to basics 25 - Valid variable names

Covering some basic topics I haven't seen elsewhere on Cody. Given a string, return true if it is a valid MATLAB variable nam...

6 years ago

Solved

Mandelbrot Numbers

The <http://en.wikipedia.org/wiki/Mandelbrot_set Mandelbrot Set> is built around a simple iterative equation. z(1) = c z...

6 years ago

Solved

Replace Vector Elements

Replace all elements in a vector which are equal to or smaller than zero with 0.1. Example: A = [1 2 3 -1 0 2 -3 -80]; ...

6 years ago

Solved

Flip the main diagonal of a matrix

Given a n x n matrix, M, flip its main diagonal. Example: >> M=magic(5); >> flipDiagonal(M) 9 24 1 ...

6 years ago

Solved

Read a column of numbers and interpolate missing data

Given an input cell array of strings s, pick out the second column and turn it into a row vector of data. Missing data will be i...

6 years ago

Solved

Back to basics 15 - Benchmark

Covering some basic topics I haven't seen elsewhere on Cody. Return an array of the benchmark values for MATLAB.

6 years ago

Solved

Back to basics 3 - Temp Directory

Covering some basic topics I haven't seen elsewhere on Cody. Return a string that is the path to the system's current temp di...

6 years ago

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Back to basics 20 - singleton dimensions

Covering some basic topics I haven't seen elsewhere on Cody. Remove the singleton dimensions from the input variable (e.g. if...

6 years ago

Solved

Make a random, non-repeating vector.

This is a basic MATLAB operation. It is for instructional purposes. --- If you want to get a random permutation of integer...

6 years ago

Solved

Project Euler: Problem 7, Nth prime

By listing the first six prime numbers: 2, 3, 5, 7, 11, and 13, we can see that the 6th prime is 13. What is the Nth prime nu...

6 years ago

Solved

Make a 1 hot vector

Make a vector of length _N_ that consists of all zeros except at index _k_, where it has the value 1. Example: Input ...

6 years ago

Solved

Count photos

Given n people, everyone must have pictures taken with everyone, each photo includes only two persons, please count the total nu...

6 years ago

Solved

Back to basics 5 - Clipboard

Covering some basic topics I haven't seen elsewhere on Cody. Copy the input string to the clipboard

6 years ago

Solved

Remove the polynomials that have positive real elements of their roots.

The characteristic equation for a dynamic system is a polynomial whose roots indicate its behavior. If any of the <http://www.ma...

6 years ago

Solved

Count from 0 to N^M in base N.

Return an array of numbers which (effectively) count from 0 to N^M-1 in base N. The result should be returned in a matrix, with ...

6 years ago

Solved

Magic!

Check whether the input matrix is a normal magic square: <http://en.wikipedia.org/wiki/Magic_square> Output the logical va...

6 years ago

Solved

Set the array elements whose value is 13 to 0

Input A either an array or a vector (which can be empty) Output B will be the same size as A . All elements of A equal to 13...

6 years ago

Solved

Return elements unique to either input

Given two numeric inputs a and b, return a row vector that contains the numbers found in only a or only b, but not both. For ex...

6 years ago

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Create a square matrix of multiples

Given an input, N, output a matrix N x N with each row containing multiples of the first element of each row. This also applies...

6 years ago

Solved

Knight's Tour Checker

Given a matrix a, determine whether or not a legal <http://en.wikipedia.org/wiki/Knight's_tour knight's tour> is present. The kn...

6 years ago

Solved

Say something funny

Say something funny, or not. Your solution will be (fully automatically and objectively) scored based on how clever or funny ...

6 years ago

Solved

Back to basics 15 - classes

Covering some basic topics I haven't seen elsewhere on Cody. Return the class of the input variable.

6 years ago