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Rob Purser


MathWorks

58 total contributions since 2011

Senior Development Manager for IoT and Hardware Interfacing for MATLAB at MathWorks. Leads the creation of software that connects MATLAB with the real world.

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Answered
Average minutes dataset to 10 minutes dataset.
Check out the <https://www.mathworks.com/help/matlab/ref/retime.html retime> function in MATLAB that was introduced in R2016b.

10 months ago | 0

Submitted


Read a National Instruments USB-TC01 single channel Thermometer in MATLAB
Read a National Instruments USB-TC01 single channel thermometer from MATLAB®

1 year ago | 0 downloads |

Answered
DC Motor Arduino Matlab
MATLAB Arduino supports the PWM (Pulse Width Modulation) mode on various digital pins. Check out this video: <http://www.mat...

2 years ago | 0

Answered
Element-wise multiplication of duration and double array
The result of the |<http://www.mathworks.com/help/matlab/matlab_prog/compute-elapsed-time.html diff>| on |dispt| (which I assume...

2 years ago | 0

Answered
convert char to double
Assuming you're in R2014b or later: Recreate your data data = ['19-Jan-2015 11:30:00.000 11.8950011 1.7625011 ...

2 years ago | 0

Answered
Simulink Hardware Support Package for Arduino [Thingspeak Write and r2014a version]
Support was added in R2014b. -Rob Purser

2 years ago | 0

| accepted

Solved


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

3 years ago

Solved


Reverse the vector
Reverse the vector elements. Example: Input x = [1,2,3,4,5,6,7,8,9] Output y = [9,8,7,6,5,4,3,2,1]

3 years 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...

3 years 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.

3 years ago

Solved


Who Has the Most Change?
You have a matrix for which each row is a person and the columns represent the number of quarters, nickels, dimes, and pennies t...

3 years ago

Answered
32 bit MATLAB on 64 bit Windows is not picking up my MCC device
Running 32-bit MATLAB on 64-bit Windows is a supported configuration as-of R2010b. In R2010a and earlier, this configuration is ...

3 years ago | 2

| accepted

Answered
Matlab Support package for SensorDAQ and Thermocouple.
Hi, Are you using the <http://www.mathworks.com/matlabcentral/fileexchange/32636-matlab-support-package-for-vernier-sensordaq...

4 years ago | 1

Solved


Return the largest number that is adjacent to a zero
This example comes from Steve Eddins' blog: <http://blogs.mathworks.com/steve/2009/05/27/learning-lessons-from-a-one-liner/ Lear...

6 years ago

Solved


The Goldbach Conjecture
The <http://en.wikipedia.org/wiki/Goldbach's_conjecture Goldbach conjecture> asserts that every even integer greater than 2 can ...

6 years 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...

6 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...

6 years ago

Solved


Sort a list of complex numbers based on far they are from the origin.
Given a list of complex numbers z, return a list zSorted such that the numbers that are farthest from the origin (0+0i) appear f...

6 years 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 + ...

6 years 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...

6 years ago

Solved


Remove the vowels
Remove all the vowels in the given phrase. Example: Input s1 = 'Jack and Jill went up the hill' Output s2 is 'Jck nd Jll wn...

6 years 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...

6 years ago

Solved


Back and Forth Rows
Given a number n, create an n-by-n matrix in which the integers from 1 to n^2 wind back and forth along the rows as shown in the...

6 years 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...

6 years 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...

6 years ago

Solved


Remove any row in which a NaN appears
Given the matrix A, return B in which all the rows that have one or more <http://www.mathworks.com/help/techdoc/ref/nan.html NaN...

6 years ago

Solved


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

6 years 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...

6 years 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...

6 years 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...

6 years ago

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