NOTE & BLOG - The personal blog for 但为君故
但为君故

但为君故

凡有所学,皆成性格

LATEST POSTS

The introduction to Bernoulli Number

Introduction, derivation and proof of Bernoulli numbers

23 April, 2024
MATHEMATICS

System Reliability Model

Outlines computer system reliability, including series, parallel components, and N-modular redundancy.

18 April, 2024
CS-BASIC

Equivalence of rectangular and trapezoidal approximations

Discusses the equivalence and error estimation in integrating piecewise continuous functions using rectangular and trapezoidal approximations.

12 April, 2024
MATHEMATICS

Data Table Relation's Normalization

Introduces functional dependencies, and the database paradigms 1NF, 2NF, 3NF, BCNF, and 4NF. and use examples to explain their concepts and connections.

12 March, 2024
DATABASE

Taylor formula, taylor theorem, taylor series, taylor expansion

This article mainly introduces the content and connection between the four concepts of Taylor's formula, Taylor's theorem, Taylor series and Taylor's expansion.

6 March, 2024
MATHEMATICS

Proof of faulhaber's formula

Faulhaber's Formula, which provides a method to compute the sum of the p-th powers of the first n positive integers.

5 March, 2024
MATHEMATICS

The catalan series

The article discusses Catalan numbers, a sequence used in combinatorial problems. It covers their recurrence relation, closed form, and applications in path counting. It provides insights into problem-solving using Catalan numbers.

2 March, 2024
ALGORITHM
MATHEMATICS

Some definitions for time complexity.

Give five symbolic and mathematical definitions related to time complexity.

1 March, 2024
ALGORITHM

Some classical ciphers and implementations

This article explores classical ciphers historically used. In the past, amid low productivity and primitive computing, these ciphers offered protection.

23 February, 2024
CRYPTOGRAPHY

How to explain The halting problem

How to explains the Halting Problem's unsolvability in computing, referencing Alan Turing's work. Let’s start with a simple Java login function and a example.

22 February, 2024
COMPUTATION