33 total contributions since 2013

I'm currently a doctoral student at UC San Diego, conducting research on the neural network properties of memory formation. Using a mixture of neurobiological and computational programming tools, I study and model memory and synaptic potentiation.

Professional Interests: neural networks, synaptic potentiation, memory, learning, brownian motion, particle diffusion, particle tracking

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...

2 months ago

Solved

Read a column of numbers and interpolate missing data

Given an input cell array of strings s, pick out the second column and turn it into a row vector of data. Missing data will be i...

2 months 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...

12 months 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...

1 year 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...

1 year 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...

1 year 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...

1 year ago

Answered

Minimal example where you run two loops simultaneously, and programmatically stop/switch a for-loop or while-loop or update the information inside those loops, while they are executing.

The problem is solved now using a timer method. If you're interested, I left notes in the <https://gist.github.com/subroutines/5...

Minimal example where you run two loops simultaneously, and programmatically stop/switch a for-loop or while-loop or update the information inside those loops, while they are executing.

The problem is solved now using a timer method. If you're interested, I left notes in the <https://gist.github.com/subroutines/5...

3 years ago | 1

| accepted

Question

Minimal example where you run two loops simultaneously, and programmatically stop/switch a for-loop or while-loop or update the information inside those loops, while they are executing.

I have a question related to parallel computing, how to run two loops simultaneously, and how to programmatically stop a for loo...

3 years ago | 2 answers | 0

Submitted

subroutines/PolyDraw

Draw polygons on a figure using a mouse and return the 2D coordinates

3 years ago | 2 downloads |

Submitted

subroutines/xmlmesh

xmlmesh is a Matlab function to format triangulated mesh data for xml file output.

4 years ago | 1 download |

Submitted

subroutines/actograph

actograph is a matlab function for plotting circadian rhythm actograms

4 years ago | 3 downloads |

Submitted

subroutines/NeuroFIT

Cell / Neuron Fluorescent Imaging Toolbox for Matlab

4 years ago | 1 download |

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 ...

5 years ago

Solved

Elapsed Time

Given two date strings d1 and d2 of the form yyyy/mm/dd HH:MM:SS (assume hours HH is in 24 hour mode), determine how much time, ...

5 years ago

Solved

Replace NaNs with the number that appears to its left in the row.

Replace NaNs with the number that appears to its left in the row. If there are more than one consecutive NaNs, they should all ...

5 years 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...

5 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...

5 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...

5 years ago

Solved

Find all elements less than 0 or greater than 10 and replace them with NaN

Given an input vector x, find all elements of x less than 0 or greater than 10 and replace them with NaN. Example: Input ...

5 years ago

Solved

Triangle Numbers

Triangle numbers are the sums of successive integers. So 6 is a triangle number because 6 = 1 + 2 + 3 which can be displa...

5 years ago

Solved

Column Removal

Remove the nth column from input matrix A and return the resulting matrix in output B. So if A = [1 2 3; 4 5 6]; and ...

5 years 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...

5 years ago

Solved

Determine if input is odd

Given the input n, return true if n is odd or false if n is even.

5 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:...

5 years ago

Submitted

circus() - just a simple circle function to generate circle info for plotting

give circus a radius and it returns circumference coordinates to plot

6 years ago | 2 downloads |