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how to generate random numbers from a distribution which is the convolution of exponential distributions?
i = 0:0.1:10; I1 = 1; I2 = 1; % define as per your requirment p1 = i/(I1^2).*exp(-i/I1); % first exponential function p2...

environ 11 ans il y a | 1

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how can i get ode15s ??
[x,y] = ode15s(YourFunction,LowerIntegrationLimit,UpperIntegrationLimit,InitialCondition)

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A soumis


Marginal distributions of a bivariate function
This function computes the marginal distributions of each variable in a bivariate function.

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Check if sorted
Check if sorted. Example: Input x = [1 2 0] Output y is 0

environ 11 ans il y a

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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...

environ 11 ans il y a

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Arrange Vector in descending order
If x=[0,3,4,2,1] then y=[4,3,2,1,0]

environ 11 ans il y a

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Importing specific rows of Data from Text file
I think the following code will serve your purpose. I assume that the text file is named as *textFile.txt* , and is saved in you...

environ 11 ans il y a | 1

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Make a checkerboard matrix
Given an integer n, make an n-by-n matrix made up of alternating ones and zeros as shown below. The a(1,1) should be 1. Example...

environ 11 ans il y a

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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...

environ 11 ans il y a

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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 ...

environ 11 ans il y a

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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...

environ 11 ans il y a

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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 ...

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Lightning strike distance: Writing a function
Write a function named LightningDistance that outputs "distance" given input "seconds". Seconds is the time from seeing lightnin...

environ 11 ans il y a

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Pizza!
Given a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.] Non-scor...

environ 11 ans il y a

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Is my wife right? Now with even more wrong husband
Again, as in "Is my wife right?" ( <http://www.mathworks.com/matlabcentral/cody/problems/149-is-my-wife-right> ), answer 'yes' r...

environ 11 ans il y a

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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 ...

environ 11 ans il y a

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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...

environ 11 ans il y a

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

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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...

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

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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:...

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How can i calculate & plot amplitudes of first 40 harmonics of char and plot the letter ?
I see a couple of problems in the code: First, ampu(n+1) means a scaler, but sqrt(au.^2+bu.^2) is a vector. So, you can form...

environ 11 ans il y a | 1

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2D matrix to 3D matrix given index in the 2D matrix col1
C = sortrows(A,1); indx = 0; for k = 1:size(C,1)-1 if C(k,1) == C(k+1,1) indx = indx+1; ...

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Generating a for loop and writing data
for i = 1:size(data,1)/8 xx=data(8*i-7:8*i,2:3); yy=data(8*i-7:8*i,1); % append other stuffs here, use loop index to...

environ 11 ans il y a | 1

Question


How can I sum the elements of a symbolic vector?
Hello, I have a symbolic vector X = [1, x1, x2, x1^2, x2^2, x1*x2], where x1 and x2 are symbols. I want to sum the vector so ...

environ 11 ans il y a | 1 réponse | 0

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