Solved
Algorithmic Trading - 4 (two thresholds)
This is the fourth of a series of problems on quant trading. It builds on earlier problems 45776, 45860, and 45884 *Goal* ...
3 years ago
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...
3 years 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...
3 years ago
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 ...
3 years ago | 1 answer | 0
1
answer
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.
4 years 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...
4 years ago
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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...
4 years ago
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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...
4 years ago
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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...
4 years 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...
4 years 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...
4 years 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 ...
4 years 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]; ...
4 years 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...
4 years 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...
4 years ago
Solved
Determine if input is odd
Given the input n, return true if n is odd or false if n is even.
4 years 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...
4 years 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 ...
4 years 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:...
4 years 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...
4 years ago | 1 answer | 0
1
answerQuestion
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...
4 years ago | 0 answers | 0
0
answersQuestion
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")...
4 years ago | 1 answer | 0
1
answerAnswered
如何制作彩色幻影坦克？How to generate an ARGB Mirage Tank?
自己解决了这个问题，分享一波~ function varargout = MirageTankV2(Image1,Image2,varargin) %输入两张图，制作幻影坦克！ %Image1和Image2三个维度视为列、行、G/AG/RGB/ARG...
如何制作彩色幻影坦克？How to generate an ARGB Mirage Tank?
自己解决了这个问题，分享一波~ function varargout = MirageTankV2(Image1,Image2,varargin) %输入两张图，制作幻影坦克！ %Image1和Image2三个维度视为列、行、G/AG/RGB/ARG...
4 years ago | 0
| accepted