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Vector Matrix multiplication (Row wise)
I'd suggest a faster version than the above methods: L = L .* v(:, ones(N,1));
Vector Matrix multiplication (Row wise)
I'd suggest a faster version than the above methods: L = L .* v(:, ones(N,1));
8 years 前 | 1
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Shrink a 1-D array (vector) by removing all the columns with a value of zero
Using *nonzeros* is also very simple (note that the output is a column vector): NewSimpleArray = nonzeros(SimpleArray) N...
Shrink a 1-D array (vector) by removing all the columns with a value of zero
Using *nonzeros* is also very simple (note that the output is a column vector): NewSimpleArray = nonzeros(SimpleArray) N...
8 years 前 | 0
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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...
10 years 前
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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...
10 years 前
已解决
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 ...
10 years 前
已解决
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...
10 years 前
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Can you reshape the matrix?
Given a matrix A, is it possible to reshape it into another matrix with the given number of rows?
10 years 前
已解决
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...
10 years 前
已解决
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 ...
10 years 前
已解决
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...
10 years 前
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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.
10 years 前
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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...
10 years 前
已解决
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 ...
10 years 前
已解决
For a given linear index as input for n sized square matrix, find corresponding row and column.
If input is 1, the row and column will be 1 and 1 respectively.
10 years 前
已解决
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:...
10 years 前
已解决
Sum the squares of numbers from 1 to n
For a given value of n return the sum of square of numbers from 1 to n. Example For n = 2 then sum of squares = 5 (1^2 + ...
10 years 前
已解决
Get all corner elements from a matrix where dimension of matrix is always equal to or greater than 2.
if a given matrix a = [1 2 3;4 5 6]; so answer is going to be [1 3;4 6]
10 years 前
