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Feeds
A résolu
Remove any row in which a NaN appears
Given the matrix A, return B in which all the rows that have one or more <http://www.mathworks.com/help/techdoc/ref/nan.html NaN...
plus de 4 ans il y a
A résolu
Reverse the vector
Reverse the vector elements. Example: Input x = [1,2,3,4,5,6,7,8,9] Output y = [9,8,7,6,5,4,3,2,1]
plus de 4 ans il y a
A résolu
Sum all integers from 1 to 2^n
Given the number x, y must be the summation of all integers from 1 to 2^x. For instance if x=2 then y must be 1+2+3+4=10.
plus de 4 ans il y a
A résolu
Create times-tables
At one time or another, we all had to memorize boring times tables. 5 times 5 is 25. 5 times 6 is 30. 12 times 12 is way more th...
plus de 4 ans il y a
A résolu
Finding Perfect Squares
Given a vector of numbers, return true if one of the numbers is a square of one of the other numbers. Otherwise return false. E...
plus de 4 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. Examp...
plus de 4 ans il y a
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...
plus de 4 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...
plus de 4 ans il y a
A résolu
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 ...
plus de 4 ans il y a
A résolu
Pizza!
Given a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.] Non-scor...
plus de 4 ans il y a
A résolu
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]; ...
plus de 4 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...
plus de 4 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.
plus de 4 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...
plus de 4 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 ...
plus de 4 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...
plus de 4 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:...
plus de 4 ans il y a
Question
Using 'OR' operator with 'case' statement
Is it good programming practice to use 'OR' operator with 'case' statement. I want to associate multiple values of 'switch' stat...
presque 7 ans il y a | 1 réponse | 0
1
réponseQuestion
How to find values of variables?
I have 2 matrices, Q and X such that XQ=0. X is 1x16 matrix with unknown values i.e. X=[x1, x2, x3, x4, ...x16]. Q is 16x16 real...
environ 7 ans il y a | 2 réponses | 0
2
réponsesQuestion
How to solve this 16x16 matrix?
The above 16x16 matrix is Q matrix. I want to calculate QX=0, where X=[x1,x2,x3...x16]'. How can I solve or at least simplify ...
environ 7 ans il y a | 1 réponse | 0
1
réponseQuestion
How to solve this matrix?
I have some variables to find like x= [1x16 (x1,x2,x3,....x16 variables)] with condition that x1+x2+x3+....x16=1. I have also 16...
environ 7 ans il y a | 2 réponses | 0
2
réponsesQuestion
how to fully whiten the white parts and fully blacken the black parts of a scanned image without changing its colorful parts
I have a scanned image of a word(.docx) file. I want it to look like the original file. for this, i want to remove the noise i.e...
environ 7 ans il y a | 1 réponse | 0
