mathematics | Practice the multiplication tables | Game Engine library

I made a dropdown using Button and a Popper using Material UI components where you can click on the button and get a list of subjects to choose from.
To make the popper disappear either we can click on the button again or use a component which listens to click event and closes the Popper.

Now I've to make the list capable of drag and drop feature so I use the react-beautiful-dnd npm package.
But the doesn't seem to work when I include , and components.

Can anyone help me figure it out?

Here's the code without drag and drop feature. CodeSandbox link https://codesandbox.io/s/gallant-newton-mfmhd?file=/demo.js

Student table: id, name, class Score table: student_id, score, discipline i tried:

In mathematics, we use superpositions of functions often. Obviously, we can define superpositions of any number of functions, e.g., (h∘g∘f)(x)(h∘g∘f)(x). My question is following -> How to define a superposition binary operator %@% ?

Let's start with a simple example.

sin %@% -pi/4

The above expression returns the value sin(−π/4) when evaluated. I would like to get an implementation of the %@% operator which allows for superposing any finite number of functions like in the following example (please see below). Could you please provide me with the solution without any additional R-packages? It will be very helpful.

tanh %@% exp %@% abs %@% sin %@% -pi/4

I need help. Recently started teaching mongodb. I can't figure out how to access the nested items. Please help: how can I find the key to "profession"?

im making a Edairy app, and im doing now the StudentGrades HTML page, which should list the Student's Subjects and their grades. It important that different Students have different kind of subjects, so I only want to display the logged-in students Subject and their grades. (For example student1 have chesmistry and physics, student2 have P.E., Mathematics)

Now im trying to make a method which selects the Subjects from the DB based on the currently logged-in students ID, but I dont use Spring Security. I tried 2 different ways, but both failed.

I am learning Python, This is my current exercise:

Write a program that stores the subjects of a course (for example:Mathematics, Physics, Chemistry, History and Language) in a list, ask the user for the grade they have taken in each subject and remove from the list approved subjects. At the end the program must show on screen the subjects that the user has to repeat.

I have the following code:

I've multiple lists and would like to find the best combination by picking only 1 value from each list. The best combination is where the total value is the highest. e.g.:

In the table below the idea combination would be event 1 from person 2, event 2 from person 3 and event 3 from person 1. Please note that this is an example and that the number of 'events' and 'persons' may vary.

The best combination would be:

• Person 1: Event 3 (6)
• Person 2: Event 1 (10)
• Person 3: Event 2 (7)

I first thought that this could be achieved with the Cartesian Product. For more details see https://en.wikipedia.org/wiki/Cartesian_product. However that will only sum all combination and don't take the 'pick-only-one-value-from-each-list' into account.

I'm interested in full Python code (with math formulas) with all computations needed to calculate natural Cubic Splines from scratch. If possible, fast (e.g. Numpy-based).

I created this question only to share my code (as answer) that I programmed recently from scratch (based on Wikipedia) when learning cubic splines.

I am trying to solve this common issue, which is due when trying to explode multiple columns and the lists inside the respective column have not the same length: