Clark

Con actividad desde 2012

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Any way to force Command Window Answers to print Fractions?
Is there any way to change the format of all numbers in the answers of the command window to be displayed as fractions rather th...

más de 13 años hace | 1 respuesta | 1

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Matrix is close to singular or badly scaled.
I'm using MATLAB for some homework problems. One such problem: consider the vectors: u1 = [5,8,7,12,11]' u2 = [2,0,8,...

más de 13 años hace | 1 respuesta | 0

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Anyone have experience with MATLAB Associate Exam?
I haven't gotten results from this exam yet, but it was my perception that doing Cody problems isn't necessary at all. If you've...

casi 14 años hace | 1

Resuelto

Determine whether a vector is monotonically increasing
Return true if the elements of the input vector increase monotonically (i.e. each element is larger than the previous). Return f...

casi 14 años hace

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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...

casi 14 años hace

Pregunta

How to update matrix values using algorithm based on position?
Suppose I've already create a square matrix, A=zeros(n). Now let's say, for every position, A(i,j), I want to update the valu...

casi 14 años hace | 1 respuesta | 0

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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 ...

casi 14 años hace

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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...

casi 14 años hace

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

casi 14 años hace

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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...

casi 14 años hace

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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 ...

casi 14 años hace

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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...

casi 14 años hace

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

casi 14 años hace

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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.

casi 14 años hace

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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 ...

casi 14 años hace

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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...

casi 14 años hace

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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:...

casi 14 años hace

Pregunta

Anyone have experience with MATLAB Associate Exam?
Next week I'll be taking the exam administered by MathWorks to try to earn a MATLAB Associate Certification. Does anyone have ex...

casi 14 años hace | 7 respuestas | 2

7

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Finding more than one solution for Matrix Multiplication (Ax = b)
Okay, so, A\b + null(A) gives me another solution. But, can I find a third solution? I was expecting there may be some funct...

casi 14 años hace | 0

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Finding more than one solution for Matrix Multiplication (Ax = b)
I don't understand how to use null for this purpose. If I use null(A\b) for example, the answer is simply an empty 1x0 matrix. C...

casi 14 años hace | 0

Pregunta

Finding more than one solution for Matrix Multiplication (Ax = b)
For some A and b, there are infinite solutions. Currently, I only know one way to solve for x, which solves for only 1 x. Tha...

casi 14 años hace | 4 respuestas | 0

4

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Pregunta

Can I get the column num of a matrix in one command?
Hello, I have a matrix, named A. I want to get the the number of columns in the matrix in one command. Is this possible? It s...

casi 14 años hace | 1 respuesta | 0

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