Answered
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...

9 years ago | 1

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

9 years ago | 2

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Submitted


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

9 years ago | 4 downloads |

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

9 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...

9 years ago

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

9 years ago

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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...

9 years ago | 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...

9 years ago

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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...

9 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 ...

9 years ago

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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...

9 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 ...

9 years ago

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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...

9 years ago

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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...

9 years ago

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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...

9 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 ...

9 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...

9 years ago

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

9 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...

9 years ago

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

9 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:...

9 years ago

Answered
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...

9 years ago | 1

Answered
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; ...

9 years ago | 1

| accepted

Answered
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...

9 years ago | 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 ...

9 years ago | 1 answer | 0

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