# Sam Marshalik

### MathWorks

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Failed to Start MJS services on 1 of 1 hostnames

This MATLAB Answer should help you resolve this error.

9 maanden ago | 0

Parallelizing For Loops - Issue

You may be able to put the contents of the parfor-loop into a separate function and calling that function from that parfor-loop....

9 maanden ago | 0

Distributed array to solve a system of linear equations on a cluster

Hey Melissa, I would not think of distributed arrays as a way to speed up your computation. Distributed arrays are useful for ...

meer dan 2 jaar ago | 0

Why AdditionalPaths of batch() do not work on Web-App-Sever / Parallel Server

Hey Olaf, is this the workflow you are trying to set up: You created an app in Appdesigner which submits a batch job to MATLAB ...

meer dan 2 jaar ago | 0

What Parallel Computing Toolbox functionality can be used without breaking the code for users without PCT?

You are correct that parfor will run as a serial for-loop without Parallel Computing Toolbox. Starting in R2021...

meer dan 2 jaar ago | 1

| accepted

Matlab Parallel Computing - lockdown test error

Can you provide a bit more information as to what you are doing and where you are seeing this error? Can you describe your work...

meer dan 2 jaar ago | 0

Starting Parallel pool on a cluster

I would suggest to reach out to the MathWorks Technical Support team to troubleshoot this. You can reach them by phone or e-mai...

meer dan 2 jaar ago | 0

Solved

Convert from Fahrenheit to Celsius

Given an input vector |F| containing temperature values in Fahrenheit, return an output vector |C| that contains the values in C...

meer dan 3 jaar ago

Solved

Calculate Amount of Cake Frosting

Given two input variables |r| and |h|, which stand for the radius and height of a cake, calculate the surface area of the cake y...

meer dan 3 jaar 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:...

meer dan 3 jaar ago

Submitted

Parallel Computing Hands-on Workshop

Learn how you can solve computationally and data intensive problems using multicore processors, GPUs, and compute clusters.

meer dan 3 jaar ago | 5 downloads |

Solved

Which values occur exactly three times?

Return a list of all values (sorted smallest to largest) that appear exactly three times in the input vector x. So if x = [1 2...

meer dan 8 jaar 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...

meer dan 8 jaar ago

Solved

How to find the position of an element in a vector without using the find function

Write a function posX=findPosition(x,y) where x is a vector and y is the number that you are searching for. Examples: fin...

meer dan 8 jaar ago

Solved

The Hitchhiker's Guide to MATLAB

Output logical "true" if the input is the answer to life, the universe and everything. Otherwise, output logical "false".

meer dan 8 jaar ago

Solved

Circle area using pi

Given a circle's radius, compute the circle's area. Use the built-in mathematical constant pi.

meer dan 8 jaar ago

Solved

Simple equation: Annual salary

Given an hourly wage, compute an annual salary by multiplying the wage times 40 and times 50, because salary = wage x 40 hours/w...

meer dan 8 jaar ago

Solved

Summing digits

Given n, find the sum of the digits that make up 2^n. Example: Input n = 7 Output b = 11 since 2^7 = 128, and 1 + ...

meer dan 8 jaar ago

Solved

Check if sorted

Check if sorted. Example: Input x = [1 2 0] Output y is 0

meer dan 8 jaar ago

Solved

Return the 3n+1 sequence for n

A Collatz sequence is the sequence where, for a given number n, the next number in the sequence is either n/2 if the number is e...

meer dan 8 jaar ago

Solved

Sum all integers from 1 to 2^n

Given the number x, y must be the summation of all integers from 1 to 2^x. For instance if x=2 then y must be 1+2+3+4=10.

meer dan 8 jaar ago

Solved

Most nonzero elements in row

Given the matrix a, return the index r of the row with the most nonzero elements. Assume there will always be exactly one row th...

meer dan 8 jaar ago

Solved

Find the numeric mean of the prime numbers in a matrix.

There will always be at least one prime in the matrix. Example: Input in = [ 8 3 5 9 ] Output out is 4...

meer dan 8 jaar ago

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...

meer dan 8 jaar ago

Solved

Weighted average

Given two lists of numbers, determine the weighted average. Example [1 2 3] and [10 15 20] should result in 33.333...

meer dan 8 jaar ago

Solved

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...

meer dan 8 jaar 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...

meer dan 8 jaar 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...

meer dan 8 jaar 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...

meer dan 8 jaar 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...

meer dan 8 jaar ago