AJ von Alt

Last seen: 7 dagen ago | Active since 2014

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Evaluate Deterministic Finite Automata on String
Given a Deterministic Finite Automata (DFA) and a string, determine whether or not the DFA will accept when ran on the string. A...

3 maanden ago

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MATLAB Basic: rounding
Do rounding near to zero Example: -8.8, answer -8 +8.1 answer 8

3 maanden ago

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Add a block to a model
Produce the following signal: <<http://blogs.mathworks.com/images/seth/cody/add-block-eqn.png>> In this case, the slope of...

ongeveer 10 jaar ago

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Add offset to a signal
Produce the following signal: <<http://blogs.mathworks.com/images/seth/cody/add-offset-eqn.png>> You should see a downward...

ongeveer 10 jaar ago

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Produce a cosine wave
Produce the following signal: <<http://blogs.mathworks.com/images/seth/cody/cosine-eqn.png>>

ongeveer 10 jaar ago

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Connect blocks in a model
Connect the blocks in the model to produce the following signal: <<http://blogs.mathworks.com/images/seth/cody/connect-blocks...

ongeveer 10 jaar ago

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Detect a number and replace with two NaN's
Write code which replaces the number 1 with two NaNs. Example X = [ 1 2 NaN 4 1 3 7 NaN 1 4 NaN 2] ...

ongeveer 11 jaar ago

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Function Iterator
Given a handle fh to a function which takes a scalar input and returns a scalar output and an integer n >= 1, return a handle f...

ongeveer 11 jaar ago

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output variable size matrix, while its specified type is something else.
MATLAB Function Block is having difficulty inferring the size of x. Replacing x=value(ind); with x=value(ind(1)...

ongeveer 11 jaar ago | 2

| accepted

Answered
Problem with findpeaks - error message of 'undefined variable "coder"'
This looks like it might be a path issue. Try: restore defaultpath savepath rehash toolboxcache and restart MATLAB...

ongeveer 11 jaar ago | 1

| accepted

Answered
Invalid MEX-file error in R2014a(32-bit)
Mex files can be version dependent. Did you generate the MEX file using MATLAB R2014a?

ongeveer 11 jaar ago | 0

Answered
See Generated code from Realtime workshop for Arduino
Generated C code can be reviewed by enabling the Code Generation report. In the Configuration Parameters dialog box select R...

ongeveer 11 jaar ago | 0

Answered
global variable inside a function
There is no need to use a global. You can pass t in as an argument to your ode function. <http://www.mathworks.com/help/matlab/r...

ongeveer 11 jaar ago | 2

Answered
Why does not overloading using assignin work?
Patrik, The MATLAB Answers article <http://www.mathworks.com/matlabcentral/answers/102537-why-do-i-receive-an-error-when-i-...

ongeveer 11 jaar ago | 1

| accepted

Answered
Is there a way, when reading a file to insert text between a deliminator.
Use strsplit with "Collapse Delimiters" disabled. inputstr = '[1,1,,1;1,1,,1;1,1,,1]'; C = strsplit( inputstr , ',' , 'C...

ongeveer 11 jaar ago | 1

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convert character array to cell
You can use strsplit to split the string into cells. For your output, you can use the line feed character char(10) as the delimi...

ongeveer 11 jaar ago | 0

| accepted

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Is there an efficient method to remove leading underscores from a cell array of strings?
b = regexprep(a,'^_','','emptymatch')

ongeveer 11 jaar ago | 1

Answered
Working with Cell Arrays
You can use cellfun with an anonymous function to get rid of the for loop. channel1 = { imread('cameraman.tif'),... ...

meer dan 11 jaar ago | 0

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how to generate a matrix from another matrix
You can use <http://www.mathworks.com/help/matlab/ref/rdivide.html rdivide> to do this. "rdivide" will expand the scalar "0.001"...

meer dan 11 jaar ago | 0

Answered
Scatter plot does not display point 0,0 when double precision
This looks like an issue with the Painters renderer. Switching to OpenGL resolves the issue on my end. x = [0 0; 12 0; 6 6]...

meer dan 11 jaar ago | 1

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Pattern matching
Given a matrix, m-by-n, find all the rows that have the same "increase, decrease, or stay same" pattern going across the columns...

meer dan 11 jaar ago

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Create a row array using double colon operator
Create a row array from 9 to 1, using the double colon operator.

meer dan 11 jaar ago

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Factorize THIS, buddy
List the prime factors for the input number, in decreasing order. List each factor only once, even if the factorization includes...

meer dan 11 jaar ago

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Trimming Spaces
Given a string, remove all leading and trailing spaces (where space is defined as ASCII 32). Input a = ' singular value deco...

meer dan 11 jaar ago

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Find the sum of the elements in the "second" diagonal
Find the sum of the elements in the diagonal that starts at the top-right corner and ends at the bottom-left corner.

meer dan 11 jaar ago

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Fahrenheit to Celsius using multiple statements
Given a Fahrenheit value F, convert to a Celsius value C. While the equation is C = 5/9 * (F - 32), as an exercise use two state...

meer dan 11 jaar ago

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Tell me the slope
Tell me the slope, given a vector with horizontal run first and vertical rise next. Example input: x = [10 2];

meer dan 11 jaar ago

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Which doors are open?
There are n doors in an alley. Initially they are all shut. You have been tasked to go down the alley n times, and open/shut the...

meer dan 11 jaar ago

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Return a list sorted by number of occurrences
Given a vector x, return a vector y of the unique values in x sorted by the number of occurrences in x. Ties are resolved by a ...

meer dan 11 jaar ago

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Reverse Run-Length Encoder
Given a "counting sequence" vector x, construct the original sequence y. A counting sequence is formed by "counting" the entrie...

meer dan 11 jaar ago