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TallBrian


Last seen: 28 days ago Active since 2016

Design engineer in healthcare Passionate about ultrasound, Doppler, radar array beamforming, code quality

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Solved


The Piggy Bank Problem
Given a cylindrical piggy bank with radius g and height y, return the bank's volume. [ g is first input argument.] Bonus though...

2 years ago

Question


Call a function in a sub directory?
Suppose a have a folder "folder1" which contains a function "sayhi.m". "folder1" contains a subfolder "subfolder1" which contai...

4 years ago | 2 answers | 0

2

answers

Question


Is there an easy way to build a test suite from all tests in a folder containing multiple packages?
I have a non-package directory, containing several packages. Each package may contain subpackages. The packages have class-bas...

4 years ago | 2 answers | 2

2

answers

Question


Return data from GUIDE on figure close
I have a GUIDE generated UI in which I have wired up one of computed values, to handles and return it through automatically gene...

4 years ago | 2 answers | 0

2

answers

Question


Fast interp1 on multiple vectors, same X, but different V and Xq per vector
I have many (numVec) 1-D vectors, each of which is sampled at the same many (numSamp) times. I want to do 1-D interpolation for...

5 years ago | 1 answer | 0

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answer

Solved


Solitaire Cipher
Implement the <http://en.wikipedia.org/wiki/Solitaire_(cipher) solitaire cipher>. Since this is from Wikipedia, I am capturin...

7 years ago

Solved


How long is the longest prime diagonal?
Stanislaw Ulam once observed that if the counting numbers are <http://en.wikipedia.org/wiki/Ulam_spiral arranged in a spiral>, t...

7 years ago

Solved


Find the biggest empty box
You are given a matrix that contains only ones and zeros. Think of the ones as columns in an otherwise empty floor plan. You wan...

7 years ago

Solved


Find a subset that divides the vector into equal halves
Given a vector x, return the indices to elements that will sum to exactly half of the sum of all elements. Example: Inpu...

7 years ago

Solved


Spot the outlier
All points except for one lie on a line. Which one is the outlier? Example: You are given a list of x-y pairs in a column ...

7 years 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".

7 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...

7 years ago

Solved


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

7 years ago

Solved


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

7 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.

7 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...

7 years ago

Solved


Is my wife right?
Regardless of input, output the string 'yes'.

7 years ago

Answered
how to convert the temperature from matrix 4d?
Hi Camila, Your data is 4-D which means that every data point corresponds to a point in dimensions. So, when you say, I need...

7 years ago | 0

Submitted


Wave Surfer Oscilloscope ASCII waveform dump reader
Reads LeCroy Wavesurfer Oscilloscope ASCII waveform into Matlab memory

7 years ago | 1 download |

Solved


Make a run-length companion vector
Given a vector x, return a vector r that indicates the run length of any value in x. Each element in r shows how many times the ...

7 years ago

Solved


How many trades represent all the profit?
Given a list of results from trades made: [1 3 -4 2 -1 2 3] We can add them up to see this series of trades made a profit ...

7 years ago

Solved


Flag largest magnitude swings as they occur
You have a phenomenon that produces strictly positive or negative results. delta = [1 -3 4 2 -1 6 -2 -7]; Marching thr...

7 years ago

Solved


Given a window, how many subsets of a vector sum positive
Given a vector: [1 0 -1 3 2 -3 1] and a window of 2, A sliding window would find: 1 + 0 = 1 0 - 1 = -1 ...

7 years ago

Answered
How to update a value in a different location from a matrix after performing check at one location in MATLAB?
What you have is a cell array. If you want to do a function on every element of a cell array you can use cellfun. Here if you ...

7 years ago | 0

Answered
Difficulty plotting values from a for loop
Yes, your graph is redrawing each time through the loop. You can add the command hold on; after the plot and then the n...

7 years ago | 0

| accepted

Solved


Bullseye Matrix
Given n (always odd), return output a that has concentric rings of the numbers 1 through (n+1)/2 around the center point. Exampl...

7 years ago

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...

7 years ago

Solved


Target sorting
Sort the given list of numbers |a| according to how far away each element is from the target value |t|. The result should return...

7 years ago

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...

7 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 ...

7 years ago

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