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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...

11 years ago

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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 ...

11 years ago

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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 ...

11 years ago

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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...

11 years ago

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

11 years ago

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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...

11 years ago

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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 ...

11 years ago

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

11 years ago

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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...

11 years ago

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How to find the position of an element in a vector without using the find function
Write a function posX=findPosition(x,y) where x is a vector and y is the number that you are searching for. Examples: fin...

11 years ago

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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:...

11 years ago

Answered
Using 'From Multimedia File', how to split the channels
Demux only works with vectors, but this signal is a matrix. You can use two Selector blocks. Set the input dimensions to 2, sele...

11 years ago | 0

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pass a parameter to a masked subsystem
Here are two options: 1. Calculate the derived values directly in the blocks that need them in the subsystem. For example, ma...

11 years ago | 0

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Boolean Filter
This sounds similar to a debounce circuit. Here are some other related answers that should help you: * <http://www.mathworks....

11 years ago | 0

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SimPowerSys: Modify the Asynchronous machine
The blocks underneat the Asynchronous machine (Mechanical model, Electrical model) are what's know as <http://www.mathworks.com/...

11 years ago | 2

Answered
signal builder: repeat a signal for n times in one simulation (not to be confused with running in succession)
Currently the only options for extending the signal beyond the time range in which it is defined in the Signal Builder block are...

11 years ago | 0

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Simulate potency
Rather than a regular Resistor block, put a Current Sensor in series with a Variable Resistor. Square the measured current using...

11 years ago | 0

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Difference between setappdata and guidata?
You can look at the code for GUIDATA by typing edit guidata You'll notice that GUIDATA calls SETAPPDATA, it just provide...

11 years ago | 2

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measure data size in simulink
Also, if you need that value as a signal in the Simulink model you can use the <http://www.mathworks.com/help/releases/R2011a/to...

11 years ago | 1

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My functions Won't Share Variables
You can share the workspace of the main GUI function with the subfunctions fun1-5 by making those subfunctions <http://www.mathw...

11 years ago | 0

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How do I display a MATLAB error from a Simulink Model?
You could also use the the blocks in the Model Verification library, such as <http://www.mathworks.com/help/releases/R2011a/tool...

11 years ago | 1

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How to detect sequence signal explicitly
If you are using R2010a or later you can use the Relational Operator block in Logic and Bit Operations to compare the vector V a...

11 years ago | 1

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Answered
Hold True Value for finite length of time
The easiest solution is using Stateflow: create two states off and on, transition from off to on when the signal is tripped, the...

11 years ago | 1

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Answered
save the variables whose names are always changing over different loops
If you are saving each value to disk as a separate file, the only thing you need to change is the filename. You can reuse the sa...

11 years ago | 1

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Answered
Distribution sampling
I'm not a statistics expert but I believe randomly sampling a set of data should come close to preserving the distribution and c...

11 years ago | 0

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How do I run a simulation with a transfer function block and a multi dimensional input ?
Another option is to discretize the transfer function because a discrete transfer function does allow a vector input signal. ...

11 years ago | 4

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Numerical difference between Matlab result and MS Excel result
When I type '123456789123456789' in a numeric field in Excel, I get 123456789123456000. The issue is due to floating point data ...

11 years ago | 1

Answered
Weird imshow image. same pixel value different color
C is double so the default range for imshow is between 0 and 1, but your values are between 0 and 255. You can either specify th...

11 years ago | 1

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Answered
Not sensible to short time FALSE
It sounds like you are trying to create debounce logic where you only want to go low if the input is held low for a certain peri...

11 years ago | 0

Answered
Choose elements, matrix with fewer elements
function y = myFun(a,b) aN = numel(a); bN = numel(b); % Make sure a is smaller if aN>bN temp ...

11 years ago | 0

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