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1,631 total contributions since 2005

Matt is currently employed at Sunnyside Risk Assessments, LLC in the beautiful Florida panhandle. He holds degrees in physics and mechanical engineering.

Professional Interests: MATLAB, C++, ANSYS

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Answered
change the font size of the current axis
x = rand(10,10); y = rand(10,10); plot(x,y); set(gca,'FontSize',20)

9 months ago | 10

| accepted

Submitted


Fast View Factor Computation
Computes the view factors for two 3D planer polygons

3 years ago | 4 downloads |

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Answered
Display rational numbers using fprintf
T = 1/3; fprintf('The number is: %s\n',strtrim(rats(T)))

6 years ago | 0

| accepted

Answered
Faster way of writing this code: (finding index)
That code does not return an index, but it does return the number of values in vector quantiles that are smaller than input.

6 years ago | 0

Answered
Breaking Quotes for Printmat
If I were you I would just use FPRINTF to print your array. I would offer you an example, but I don't know what you mean by "Is ...

6 years ago | 0

Answered
Create a matrix with Special properties
V0 = 10; a = 5; V1 = V0 + randi([-100 140]) + a; V2 = V1 + randi([-100 140]) + a; matrix = [V0,randi([-100 140]),a...

6 years ago | 0

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Answered
index exceeds matrix dimention
What is the Q doing there? We need to see code that we can copy/paste and *_it will run_*. So please fill in the missing varia...

6 years ago | 0

Answered
A simple question about working with array matrix and converting a column to multiple columns
reshape(X,50,12) Or perhaps reshape(X,12,50).'

6 years ago | 1

| accepted

Answered
adding breakpoint to program slows it down a factor of 250x
It makes sense to me that MATLAB would be slower when you are debugging. So what is the big deal? You won't be in debug mode o...

6 years ago | 0

| accepted

Answered
I need help with the Matlab R2007b commands
If you have MATLAB installed then you can look at the documentation by typing: docsearch('image processing toolbox') The...

6 years ago | 0

Answered
how to enable rotate3d for guide axes?
Use the command: rotated3d on After the code that plots the surf.

6 years ago | 0

Answered
Problem Saving Workspace - No Error Message
Of course, it would be immenseley helpful, and might actually allow a solution to be put forward, if you describe *in detail* wh...

6 years ago | 0

Answered
Concatenate cells: making column and row headers
row={'cat1'; 'cat2'; 'cat3'}; col={'mouse1' 'mouse2' 'mouse3'}; figure t = uitable('Data',[],... 'Colu...

6 years ago | 0

Answered
[GUI] How do you fill a Listbox with documents from a specific folder
The most basic example... D = dir; uicontrol('style','list',... 'units','pix',... 'pos',[20 20...

6 years ago | 0

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Answered
About matrix: how to make matrix binary (0 and 1)
S = dec2bin((1:32).') % If a string is o.k. N = S - '0' % If you need a numeric matrix.

6 years ago | 0

Answered
i want to plot the graph between the probability of false alarm and probability of detection
# Format your code. # Give a description of what it does and what is wrong # State _clearly_ what you need it to do.

6 years ago | 0

Answered
How can i create a standard matlab template for new programs
You could put that code in an m-file then use COPYFILE to copy it to a new m-file, including the intended name. Say your abov...

6 years ago | 0

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Answered
what is difference in cell and structure plz tell me with example
There is good documentation on this, did you read: doc cell doc struct Here is a cell array: C{1} = magic(3)...

6 years ago | 2

Answered
Error in Quad, suggestions required ?
Don't mix inlines with symbolics this way. syms E m R T f1 = int((0.99954.*E + ((0.58058-0.044967.*m).*R.*T))./(E + (2...

6 years ago | 0

Answered
plot of specified data
a=[1;1;1;1;2;2;2;3;3;3;3;4;4;4;4;4;5;5;5]; b=[20;21;22;24;20;22;24;21;19;20;22;23;24;19;23;19;24;23;22]; c=[2;5;1;3;1;3;...

6 years ago | 0

| accepted

Answered
Quick way to find the point where a vector changes from increasing to decreasing.
D = [10,9,7,5,3,2,1,2,3,5,7]; V = [0 diff(D)>0] % Indicates sign of difference S = find(V,1,'first') % First index whe...

6 years ago | 0

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Answered
Quotes around the name of the function
Typically, you want to pass a handle to a function, not a string. fsovle(@myfun,x0) % Notice the @ symbol --> a function h...

6 years ago | 0

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Answered
How to solve a simple if loop
# There is no such thing as an IF loop. # IF statements do not filter elements out of an array. # MATLAB does not use a THEN k...

6 years ago | 1

| accepted

Answered
Aborting callback execution in GUI - Drawnow error
I am not sure why you are using errors to try to cancel an operation. It seems simpler to just have the cancel button set a fla...

6 years ago | 0

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Answered
GUI pop-up menu and push buttons
There are many ways to do this. Here is a simple example that may provide a skeleton for you to fill out. function [] = ...

6 years ago | 0

Answered
Is there a way to label a plot with angled text?
You might give <http://www.mathworks.com/matlabcentral/fileexchange/27812-rotate-x-axis-tick-labels this file exchange file a tr...

6 years ago | 0

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Answered
[co,fig] = gcbo does not work in slider listener
Use FINDALL. fig = findall(0,'type','figure','tag','myfiguretag')

6 years ago | 0

Answered
Hello, I am trying to fit some data points with an exponential equation.
>> X = sort(rand(1,10)*30); % Say this is our x data. >> Y = 14*exp(3*X); % Say this is _unknown_ equation. >> pp = po...

6 years ago | 0

Answered
Convert (x,y) data into a function y => f(x)
You could use POLYFIT, or the curve fitting toolbox or a simple interpolation. >> x = 0:.25:5; >> y = x.^2; >> f = ...

6 years ago | 1

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Answered
regexprep - may the replacement string contain a variable?
Does this work? regexprep(str, '(xx\(i,)BE(\))', ['$1',q,'$2'] )

6 years ago | 0

| accepted

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