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Clark


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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...

plus de 11 ans il y a | 1 réponse | 1

1

réponse

Question


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,...

presque 12 ans il y a | 1 réponse | 0

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Réponse apportée
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...

presque 12 ans il y a | 1

A résolu


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...

presque 12 ans il y a

A résolu


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...

presque 12 ans il y a

Question


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...

presque 12 ans il y a | 1 réponse | 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 ...

presque 12 ans il y a

A résolu


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...

presque 12 ans il y a

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

presque 12 ans il y a

A résolu


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...

presque 12 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 ...

presque 12 ans il y a

A résolu


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...

presque 12 ans il y a

A résolu


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

presque 12 ans il y a

A résolu


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

presque 12 ans il y a

A résolu


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 ...

presque 12 ans il y a

A résolu


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...

presque 12 ans il y a

A résolu


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:...

presque 12 ans il y a

Question


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...

presque 12 ans il y a | 7 réponses | 2

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Réponse apportée
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...

presque 12 ans il y a | 0

Réponse apportée
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...

presque 12 ans il y a | 0

Question


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...

presque 12 ans il y a | 4 réponses | 0

4

réponses

Question


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...

presque 12 ans il y a | 1 réponse | 0

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