
Jos Martin
MathWorks
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Director Of Engineering - Cloud Integration and Parallel Computing.
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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...
5 years ago
Solved
Piecewise linear interpolation
Given an Mx2 vector and a row of M-1 integers, output a two column vector that linearly interpolates Y times between each succes...
6 years ago
Solved
How to subtract?
*± ± ± ± ± ± ± ± ± ± ±* * Imagine you need to subtract one...
7 years ago
Submitted
Port Passing Problem
Monte-carlo and analytic investigation of a random walk process
8 years ago | 1 download |

Submitted
Hydrogenic Wavefunction Visulization Tool
Visualize hydrogenic wave-functions in 3D and watch animations of atomic state changes
8 years ago | 11 downloads |

Submitted
Cluster setup scripts
Shell scripts to easily control a MATLAB distributing computing cluster
8 years ago | 1 download |
Submitted
Visual Timing Report for Distributed Tasks
Create a visual representation of when and where each task in a distributed computing job executes.
8 years ago | 1 download |

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...
12 years ago
GPU computing with OS X 10.8 and retina macbook
We believe that the hang you are seeing relates to the CUDA driver recompiling all of the GPU libraries to run on the particular...
12 years ago | 4
Matlab not recognizing cuda driver 5
There appears to be an interaction between "automatic graphics switching" in Mountain Lion and the underlying NVIDIA drivers. Co...
12 years ago | 0
Solved
Function composition - harder
Write a function that accepts an arbitrary number of function handles f_1, f_2, ..., f_n and returns the composition h. That is,...
13 years ago
Solved
Determine if input is odd
Given the input n, return true if n is odd or false if n is even.
13 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. Example...
13 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 ...
13 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...
13 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:...
13 years ago
What is the maximum number of Process Cards can be used for GPU computing with Parallel Computing Toolbox 5.0 (R2010b)?
Each MATLAB or worker can access one GPU at a time. Since the Parallel Computing Toolbox currently ships with 8 local workers, y...
14 years ago | 0