Design engineer in healthcare

Passionate about ultrasound, Doppler, radar array beamforming

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...

1 month ago | 2 answers | 0

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...

1 year ago | 1 answer | 0

Solved

Solitaire Cipher

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

3 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...

3 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...

3 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...

3 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 ...

3 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".

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

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

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

Weighted average

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

3 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...

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...

3 years ago | 0

Submitted

Wave Surfer Oscilloscope ASCII waveform dump reader

Reads LeCroy Wavesurfer Oscilloscope ASCII waveform into Matlab memory

3 years ago | 3 downloads |

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 ...

3 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 ...

3 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...

3 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 ...

3 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 ...

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 ...

3 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...

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...

3 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...

3 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...

3 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...

3 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...

3 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 ...

3 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...

3 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...

3 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 + ...

3 years ago