Solved

Algorithmic Trading - 3 (short selling and leverage)
This is the third of a series of problems on quant trading. It builds on earlier problems 45776 and 45860 <https://www.mathwo...

oltre un anno ago

Solved

Algorithmic Trading - 2 (optimize Calmar Ratio)
This is the second of a series of problems on quant trading. It builds on earlier problem 45776 <https://www.mathworks.com/matla...

oltre un anno ago

Problem

arrayfun bomb

oltre un anno ago | 1 | 3 solvers

Problem

Magic array teasing num2cell

oltre un anno ago | 0 | 1 solver

Question

How to perform image registration on GPU
imregister does not support GPU unfortunately. Are there any workarounds? I have hundreds of millions of images to register and ...

oltre un anno ago | 1 answer | 0

1

Submitted

Solved

The most decentralized RGB colors

oltre un anno ago

Problem

The most decentralized RGB colors

oltre un anno ago | 0 | 1 solver

Solved

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.

oltre un anno ago

Solved

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...

oltre un anno ago

Solved

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...

oltre un anno ago

Solved

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...

oltre un anno ago

Solved

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...

oltre un anno ago

Solved

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...

oltre un anno ago

Solved

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...

oltre un anno ago

Solved

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 ...

oltre un anno ago

Solved

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

oltre un anno ago

Solved

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]; ...

oltre un anno ago

Solved

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...

oltre un anno ago

Solved

Pizza!
Given a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.] Non-scor...

oltre un anno ago

Solved

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

oltre un anno ago

Solved

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...

oltre un anno ago

Solved

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

oltre un anno ago

Solved

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 ...

oltre un anno ago

Solved

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:...

oltre un anno ago

Question

Why the rows are the first dimension of array by design?
I know it's impossible to change now because of the compatibility burden. But why did the first developers decided to use rows a...

oltre un anno ago | 1 answer | 0

1

Submitted

Question

How to shut down connection to Arduino device when the arduino variable is not in the workspace?
The arduino object is cleared from the workspace, but the connection remains, because I can't create a new connection. MATLAB to...

circa 2 anni ago | 0 answers | 0

0

Question

MatFile grows exponentially larger in an empty table replacement loop?
First create a MatFile: a=matfile("Test.mat"); Then create an empty table: a.Data=table('Size',[0 1],'VariableTypes',"uint8")...

circa 2 anni ago | 1 answer | 0