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Mitch Martelli


UNIGE

34 total contributions since 2011

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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...

2 years 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...

2 years ago

Solved


Pernicious Anniversary Problem
Since Cody is 5 years old, it's pernicious. A <http://rosettacode.org/wiki/Pernicious_numbers Pernicious number> is an integer w...

2 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 ...

3 years ago

Solved


Weighted average
Given two lists of numbers, determine the weighted average. Example [1 2 3] and [10 15 20] should result in 33.333...

3 years 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...

3 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 ...

3 years 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...

3 years ago

Solved


Find the dimensions of a matrix
Just find the number of columns of the given matrix. Example x = [1 2 3 4 5 6] y = 2

3 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:...

3 years ago

Solved


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

3 years 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...

3 years ago

Solved


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

5 years 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 ...

5 years ago

Question


Global variables in embedded Matlab function
Hi @ all, I would like to use some variables defined in a m-file into embedded Matlab block in Simulink. I would like to do t...

6 years ago | 1 answer | 0

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answer

Answered
create Executable file from simulink model
How I can do this? Maybe in the first question I have not been clear Let me shown a simple example : I have a simulink ...

7 years ago | 1

Question


create Executable file from simulink model
Hi @ all, I would like to ask you how I can build a model , using the Simulink Coder. I would like to call the so generated ...

7 years ago | 3 answers | 1

3

answers

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matlab simulink error help me
Hi, You use a for statement but I cant see no one indexed variable inside the loop. Maybe you would like to to this : nu...

7 years ago | 0

Answered
Extracting data from .mat file
Sorry i dont understand well your question to extract the data you can try to use getEntry, documentation are reported in the...

7 years ago | 0

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Answered
mean and standard deviation code
Hi, From your post i suppose that you would like the mean rows by rows, and you want the standard deviation columns by column...

7 years ago | 0

Answered
Extracting data from .mat file
Hi, You can use the reshape function. Example : data=rand(8760,1) B = reshape(data,24,365); B=B'; Regards M...

7 years ago | 0

Answered
I have a problem with plotting a summation equation
Hi, you mean something like that ? y=0:0.025:1; x=0:0.05:0.7; n=1:1:50; [X,Y]=meshgrid(x,y); for i=1:size(n,2) ...

7 years ago | 1

| accepted

Question


Fully standalone executable file
Hi @ all, I'm not an expert in compiler. I would like to ask if someone tried to create, starting from matlab m file, a compl...

7 years ago | 3 answers | 0

3

answers

Question


Import data in Simulink
Hi I would like to import in Simulink about 30 variables (with constant value) declared in .m file and the use these in one ...

7 years ago | 1 answer | 0

1

answer

Question


Simulink Multiplot graph
Hi @ all, I would like to ask if someone can explain me how I can add labels and titles in the simulink block multi graphplot...

8 years ago | 1 answer | 0

1

answer

Answered
equation with multiple X
Hi If you want the division element by element you must put the dot in the right position: y = ((x*20000)./(x+20000))/...

8 years ago | 1

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Answered
operations on specific row
Hi, for your first question you can use : p = polyfit(A(:,3),A(:,2),1); Pay attention to use one like degree . For the sec...

8 years ago | 0

| accepted

Question


Ode option
Hi at all, I would like to ask you if there is a way,using standard matlab ode function, to stop the calculation before the f...

8 years ago | 1 answer | 0

1

answer

Question


Simulink model in a for loop
Hi at all, I have a problem when I run a simulink model inside a for loop. More in detail when I run the model with the comm...

8 years ago | 1 answer | 0

1

answer

Answered
legend
Try * if b is a numerical vector with: legend(num2str(b(:))) * If b is a string vector : legend(b)

8 years ago | 0

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