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Jeff Spector


Last seen: 2 månader ago |  Active since 2013

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Please help me understand output from discretize
I am trying to understand what discretize is doing, I have data ranging from 0 to 1 and want to bin it in bins of size .01. X=[...

2 månader ago | 2 answers | 0

2

answers

Question


speeding up tiff writing
I'm trying to write a large (~18,000) frame image stack to a tiff file. See code below : imgname=[SubDataFolder,... ...

ungefär 5 år ago | 0 answers | 0

0

answers

Question


how to speed up gaussian fitting
Greetings, I am working on a piece of code that takes in some data and fits a gaussian with a constant offset to it. I first ...

mer än 5 år ago | 1 answer | 0

1

answer

Question


Cantilevered Beam Mode Amplitudes
I've got some images of a polymer clamped at one end and free to fluctuate at the other. I believe this is a cantilevered beam p...

mer än 6 år ago | 0 answers | 0

0

answers

Solved


Pentagonal Numbers
Your function will receive a lower and upper bound. It should return all pentagonal numbers within that inclusive range in ascen...

nästan 7 år ago

Solved


Energy of a photon
*&#9883 &#9762 &#9883 &#9762 &#9883 &#9762 &#9883* Given the frequency F of a photon in giga hertz. Find energy E of this...

nästan 7 år 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...

nästan 7 år ago

Solved


How to subtract?
*&plusmn &plusmn &plusmn &plusmn &plusmn &plusmn &plusmn &plusmn &plusmn &plusmn &plusmn* * Imagine you need to subtract one...

nästan 7 år 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 ...

nästan 7 år 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:...

nästan 8 år ago

Question


Speed up multi page tiff display?
I am working on a GUI for some people in my lab. I can easily read in their data which are multipage tiff files. The process of ...

ungefär 11 år ago | 1 answer | 0

1

answer

Question


cpselect doesn't show images
Hi, I'm trying to register two images taken on two different CCD cameras. I know I can't do this with a simple linear transfor...

mer än 11 år ago | 1 answer | 0

1

answer

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...

mer än 11 år ago

Solved


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

mer än 11 år 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 ...

mer än 11 år 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...

mer än 11 år 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...

mer än 11 år ago

Solved


Add two numbers
Given a and b, return the sum a+b in c.

mer än 11 år ago

Solved


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

mer än 11 år ago

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 ...

mer än 11 år ago

Solved


Make the vector [1 2 3 4 5 6 7 8 9 10]
In MATLAB, you create a vector by enclosing the elements in square brackets like so: x = [1 2 3 4] Commas are optional, s...

mer än 11 år ago

Question


How do i solve this in MATLAB
I have the following coupled nonlinear PDE's : 1) y''-(dy/dt) = k1*(dC/dt) 2) k2*(dC/dt)=(k3)*(k4)*y*(1-C)-(k3)*C w...

mer än 11 år ago | 0 answers | 0

0

answers

Question


placing elements of a cell array into a matrix
I am reading in data from several files. For each file I first read the data into elements in a cell array. This works fine. I ...

mer än 11 år ago | 1 answer | 0

1

answer

Question


Diffusion with reversible Binding
I am trying to model one dimensional diffusion with reversible binding. Essentially my situation is A+B <-> AB where thre is a K...

mer än 11 år ago | 0 answers | 0

0

answers