Community Profile # Sebastian

Last seen: 2 giorni ago Active since 2017

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Question

Conversion of string containing "AM" or "PM" to datetime
Given the string str = "4/21/2022 8:48:40 AM" I want to convert it to a datetime datetime 21-Apr-2022 08:48:40 ...

5 mesi ago | 1 answer | 0

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Question

How to re-train a model optimized by Bayesian optimization on new data?
Hi, I optimized a regression ensemble model = fitrensemble(X,Y,...); with active HyperparameterOptimizationOptions, so the re...

circa 3 anni ago | 1 answer | 0

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Question

Understanding and applying results of bayesopt
Hi, I have some difficulties understanding the Matlab documentation of the bayesopt function. For example, the bestPoint funct...

circa 3 anni ago | 2 answers | 0

### 2

Question

Standalone App does not start on PC without internet connection
Hi, a standalone application created with App Designer does not start on a PC without internet connection. Instead of showing...

circa 3 anni ago | 0 answers | 0

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Solved

Pair Primes
Let's define pair primes as follow; * *For 2 digits numbers:* 11 and 17 are pair primes because both of them are 2 digits pri...

circa 5 anni ago

Solved

Hexagonal numbers on a spiral matrix
Put hexagonal numbers in a ( m x m ) spiral matrix and return the sum of its diagonal elements. Formula of hexagonal numbers ...

circa 5 anni ago

Solved

Cache me Outside
The test suite includes a simple recursive Fibonacci sequence generator, but it's terribly inefficient. One simple method for im...

circa 5 anni ago

Solved

Is this a valid Tic Tac Toe State?
For the game of <https://en.wikipedia.org/wiki/Tic-tac-toe Tic Tac Toe> we will be storing the state of the game in a matrix M. ...

circa 5 anni ago

Solved

Digit concentration in Champernowne's constant
Consider the first 50 digits of Champernowne's constant 0.12345678910111213141516171819202122232425262728293... The...

circa 5 anni ago

Solved

Sums of Distinct Powers
You will be given three numbers: base, nstart, and nend. Write a MATLAB script that will compute the sum of a sequence of both ...

circa 5 anni ago

Solved

An asteroid and a spacecraft
&#128640 Imagine a non-relativistic simple situation. Assume positions p0, p1, p2, and p3 are three dimensional Cartesian ...

circa 5 anni ago

Solved

5th Time's a Charm
Write a function that will return the input value. However, your function must fail the first four times, only functioning prope...

circa 5 anni ago

Solved

Acid and water
&#9878; &#9878; &#9878; &#9878; &#9878; &#9878; &#9878; &#9878; Assume that there is a 100 liter tank. It is initially fi...

circa 5 anni ago

Solved

Number of Even Elements in Fibonacci Sequence
Find how many even Fibonacci numbers are available in the first d numbers. Consider the following first 14 numbers 1 1 2...

circa 5 anni ago

Solved

The 5th Root
Write a function to find the 5th root of a number. It sounds easy, but the typical functions are not allowed (see the test su...

circa 5 anni ago

Solved

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...

circa 5 anni ago

Solved

Energy of a photon
*&#9883 &#9762 &#9883 &#9762 &#9883 &#9762 &#9883* Given the frequency F of a photon in giga hertz. Find energy E of this...

circa 5 anni ago